[feature] Option to hide followers/following (#2788)

docs/api/swagger.yaml

@@ -225,7 +225,9 @@ definitions:
                 type: array
                 x-go-name: Emojis
             enable_rss:
-                description: Account has enabled RSS feed.
+                description: |-
+                    Account has enabled RSS feed.
+                    Key/value omitted if false.
                 type: boolean
                 x-go-name: EnableRSS
             fields:
@@ -256,6 +258,12 @@ definitions:
                 example: https://example.org/media/some_user/header/static/header.png
                 type: string
                 x-go-name: HeaderStatic
+            hide_collections:
+                description: |-
+                    Account has opted to hide their followers/following collections.
+                    Key/value omitted if false.
+                type: boolean
+                x-go-name: HideCollections
             id:
                 description: The account id.
                 example: 01FBVD42CQ3ZEEVMW180SBX03B
@@ -2898,6 +2906,8 @@ paths:
                 ```
                 <https://example.org/api/v1/accounts/0657WMDEC3KQDTD6NZ4XJZBK4M/followers?limit=80&max_id=01FC0SKA48HNSVR6YKZCQGS2V8>; rel="next", <https://example.org/api/v1/accounts/0657WMDEC3KQDTD6NZ4XJZBK4M/followers?limit=80&min_id=01FC0SKW5JK2Q4EVAV2B462YY0>; rel="prev"
                 ````
+
+                If account `hide_collections` is true, and requesting account != target account, no results will be returned.
             operationId: accountFollowers
             parameters:
                 - description: Account ID.
@@ -2962,6 +2972,8 @@ paths:
                 ```
                 <https://example.org/api/v1/accounts/0657WMDEC3KQDTD6NZ4XJZBK4M/following?limit=80&max_id=01FC0SKA48HNSVR6YKZCQGS2V8>; rel="next", <https://example.org/api/v1/accounts/0657WMDEC3KQDTD6NZ4XJZBK4M/following?limit=80&min_id=01FC0SKW5JK2Q4EVAV2B462YY0>; rel="prev"
                 ````
+
+                If account `hide_collections` is true, and requesting account != target account, no results will be returned.
             operationId: accountFollowing
             parameters:
                 - description: Account ID.
@@ -3552,6 +3564,10 @@ paths:
                   in: formData
                   name: source[status_content_type]
                   type: string
+                - description: FileName of the theme to use when rendering this account's profile or statuses. The theme must exist on this server, as indicated by /api/v1/accounts/themes. Empty string unsets theme and returns to the default GoToSocial theme.
+                  in: formData
+                  name: theme
+                  type: string
                 - description: Custom CSS to use when rendering this account's profile or statuses. String must be no more than 5,000 characters (~5kb).
                   in: formData
                   name: custom_css
@@ -3560,6 +3576,10 @@ paths:
                   in: formData
                   name: enable_rss
                   type: boolean
+                - description: Hide the account's following/followers collections.
+                  in: formData
+                  name: hide_collections
+                  type: boolean
                 - description: Name of 1st profile field to be added to this account's profile. (The index may be any string; add more indexes to send more fields.)
                   in: formData
                   name: fields_attributes[0][name]

docs/federation/federating_with_gotosocial.md

@@ -106,7 +106,9 @@ This ensures that remote servers cannot flood a GoToSocial instance with spuriou
 
 For more details on request throttling and rate limiting behavior, please see the [throttling](../api/throttling.md) and [rate limiting](../api/ratelimiting.md) documents.
 
-## Inbox
+## Actors and Actor Properties
+
+### Inbox
 
 GoToSocial implements Inboxes for Actors following the ActivityPub specification [here](https://www.w3.org/TR/activitypub/#inbox).
 
@@ -132,7 +134,7 @@ Invalidly-formed Inbox POST requests will receive a [400 - Bad Request](https://
 
 Even if GoToSocial returns a `202` status code, it may not continue processing the Activity delivered, depending on the originator(s), target(s) and type of the Activity. ActivityPub is an extensive protocol, and GoToSocial does not cover every combination of Activity and Object.
 
-## Outbox
+### Outbox
 
 GoToSocial implements Outboxes for Actors (ie., instance accounts) following the ActivityPub specification [here](https://www.w3.org/TR/activitypub/#outbox).
 
@@ -180,6 +182,58 @@ The `orderedItems` array will contain up to 30 entries. To get more entries beyo
 
 Note that in the returned `orderedItems`, all activity types will be `Create`. On each activity, the `object` field will be the AP URI of an original public status created by the Actor who owns the Outbox (ie., a `Note` with `https://www.w3.org/ns/activitystreams#Public` in the `to` field, which is not a reply to another status). Callers can use the returned AP URIs to dereference the content of the notes.
 
+### Followers / Following Collections
+
+GoToSocial implements followers and following collections as `OrderedCollection`s. A properly-signed `GET` request to an Actor's Following collection, for example, will return something like:
+
+```json
+{
+  "@context": "https://www.w3.org/ns/activitystreams",
+  "first": "https://example.org/users/someone/following?limit=40",
+  "id": "https://example.org/users/someone/following",
+  "totalItems": 397,
+  "type": "OrderedCollection"
+}
+```
+
+From there, you can use the `first` page to start getting items. For example, a `GET` request to `https://example.org/users/someone/following?limit=40` will produce something like:
+
+```json
+{
+  "@context": "https://www.w3.org/ns/activitystreams",
+  "id": "https://example.org/users/someone/following?limit=40",
+  "next": "https://example.org/users/someone/following?limit=40&max_id=01V1AY4ZJT4JK1NT271SH2WMGH",
+  "orderedItems": [
+    "https://example.org/users/someone_else",
+    "https://somewhere.else.example.org/users/another_account",
+    [... 38 more entries here ...]
+  ],
+  "partOf": "https://example.org/users/someone/following",
+  "prev": "https://example.org/users/someone/following?limit=40&since_id=021HKBY346X7BPFYANPPJN493P",
+  "totalItems": 397,
+  "type": "OrderedCollectionPage"
+}
+```
+
+You can then use the `next` and `prev` endpoints to page down and up through the OrderedCollection.
+
+!!! Info "Hidden Followers / Following Collections"
+    
+    GoToSocial allows users to hide their followers/following collections if they wish.
+    
+    If a user has chosen to hide their collections, then only a stub collection with `totalItems` will be returned, and you will not be able to page through the Actor's followers/following collections.
+    
+    A `GET` to the following collection of an Actor with hidden collections will look like:
+    
+    ```json
+    {
+      "@context": "https://www.w3.org/ns/activitystreams",
+      "id": "https://example.org/users/someone/following",
+      "type": "OrderedCollection",
+      "totalItems": 397
+    }
+    ```
+
 ## Conversation Threads
 
 Due to the nature of decentralization and federation, it is practically impossible for any one server on the fediverse to be aware of every post in a given conversation thread.

docs/user_guide/settings.md

@@ -88,15 +88,6 @@ This option is often referred to on the fediverse as "locking" your account.
 
 After ticking or unticking the checkbox, be sure to click on the `Save profile info` button at the bottom to save your new settings.
 
-#### Enable RSS Feed of Public Posts
-
-RSS feeds for users are disabled by default, but can be opted into with this checkbox. For more information see [RSS](./rss.md).
-
-This feed only includes posts set as 'Public' (see [Privacy Settings](./posts.md#privacy-settings)).
-
-!!! warning
-    Exposing your RSS feed allows *anyone* to subscribe to updates on your Public posts anonymously, bypassing follows and follow requests.
-
 #### Mark Account as Discoverable by Search Engines and Directories
 
 This setting updates the 'discoverable' flag on your account.
@@ -114,6 +105,21 @@ Turning on the discoverable flag may take a week or more to propagate; your acco
 !!! info
     The discoverable setting is about **discoverability of your account**, not searchability of your posts. It has nothing to do with indexing of your posts for search by Mastodon instances, or other federated instances that use full text search!
 
+#### Enable RSS Feed of Public Posts
+
+RSS feeds for users are disabled by default, but can be opted into with this checkbox. For more information see [RSS](./rss.md).
+
+This feed only includes posts set as 'Public' (see [Privacy Settings](./posts.md#privacy-settings)).
+
+!!! warning
+    Exposing your RSS feed allows *anyone* to subscribe to updates on your Public posts anonymously, bypassing follows and follow requests.
+
+#### Hide Who You Follow / Are Followed By
+
+By default, GoToSocial shows your following/followers counts on your public web profile, and allows others to see who you follow and are followed by. This can be useful for account discovery purposes. However, for privacy + safety reasons you may wish to hide these counts, and to hide your following/followers lists from other accounts. You can do this by checking this box.
+
+With the box checked, your following/followers counts will be hidden from your public web profile, and others will not be able to page through your following/followers lists.
+
 ### Advanced
 
 #### Custom CSS

internal/ap/activitystreams_test.go

@@ -49,6 +49,7 @@ func TestASCollection(t *testing.T) {
 	// Create new collection using builder function.
 	c := ap.NewASCollection(ap.CollectionParams{
 		ID:    parseURI(idURI),
+		First: new(paging.Page),
 		Query: url.Values{"limit": []string{"40"}},
 		Total: total,
 	})
@@ -60,6 +61,37 @@ func TestASCollection(t *testing.T) {
 	assert.Equal(t, expect, s)
 }
 
+func TestASCollectionTotalOnly(t *testing.T) {
+	const (
+		proto = "https"
+		host  = "zorg.flabormagorg.xyz"
+		path  = "/users/itsa_me_mario"
+
+		idURI = proto + "://" + host + path
+		total = 10
+	)
+
+	// Create JSON string of expected output.
+	expect := toJSON(map[string]any{
+		"@context":   "https://www.w3.org/ns/activitystreams",
+		"type":       "Collection",
+		"id":         idURI,
+		"totalItems": total,
+	})
+
+	// Create new collection using builder function.
+	c := ap.NewASCollection(ap.CollectionParams{
+		ID:    parseURI(idURI),
+		Total: total,
+	})
+
+	// Serialize collection.
+	s := toJSON(c)
+
+	// Ensure outputs are equal.
+	assert.Equal(t, expect, s)
+}
+
 func TestASCollectionPage(t *testing.T) {
 	const (
 		proto = "https"
@@ -132,6 +164,7 @@ func TestASOrderedCollection(t *testing.T) {
 	// Create new collection using builder function.
 	c := ap.NewASOrderedCollection(ap.CollectionParams{
 		ID:    parseURI(idURI),
+		First: new(paging.Page),
 		Query: url.Values{"limit": []string{"40"}},
 		Total: total,
 	})
@@ -143,6 +176,33 @@ func TestASOrderedCollection(t *testing.T) {
 	assert.Equal(t, expect, s)
 }
 
+func TestASOrderedCollectionTotalOnly(t *testing.T) {
+	const (
+		idURI = "https://zorg.flabormagorg.xyz/users/itsa_me_mario"
+		total = 10
+	)
+
+	// Create JSON string of expected output.
+	expect := toJSON(map[string]any{
+		"@context":   "https://www.w3.org/ns/activitystreams",
+		"type":       "OrderedCollection",
+		"id":         idURI,
+		"totalItems": total,
+	})
+
+	// Create new collection using builder function.
+	c := ap.NewASOrderedCollection(ap.CollectionParams{
+		ID:    parseURI(idURI),
+		Total: total,
+	})
+
+	// Serialize collection.
+	s := toJSON(c)
+
+	// Ensure outputs are equal.
+	assert.Equal(t, expect, s)
+}
+
 func TestASOrderedCollectionPage(t *testing.T) {
 	const (
 		proto = "https"

internal/ap/collections.go

@@ -281,7 +281,7 @@ type CollectionParams struct {
 	ID *url.URL
 
 	// First page details.
-	First paging.Page
+	First *paging.Page
 	Query url.Values
 
 	// Total no. items.
@@ -377,6 +377,11 @@ func buildCollection[C CollectionBuilder](collection C, params CollectionParams)
 	totalItems.Set(params.Total)
 	collection.SetActivityStreamsTotalItems(totalItems)
 
+	// No First page means we're done.
+	if params.First == nil {
+		return
+	}
+
 	// Append paging query params
 	// to those already in ID prop.
 	pageQueryParams := appendQuery(

internal/api/client/accounts/accountupdate.go

@@ -108,6 +108,14 @@ import (
 //		description: Default content type to use for authored statuses (text/plain or text/markdown).
 //		type: string
 //	-
+//		name: theme
+//		in: formData
+//		description: >-
+//			FileName of the theme to use when rendering this account's profile or statuses.
+//			The theme must exist on this server, as indicated by /api/v1/accounts/themes.
+//			Empty string unsets theme and returns to the default GoToSocial theme.
+//		type: string
+//	-
 //		name: custom_css
 //		in: formData
 //		description: >-
@@ -120,6 +128,11 @@ import (
 //		description: Enable RSS feed for this account's Public posts at `/[username]/feed.rss`
 //		type: boolean
 //	-
+//		name: hide_collections
+//		in: formData
+//		description: Hide the account's following/followers collections.
+//		type: boolean
+//	-
 //		name: fields_attributes[0][name]
 //		in: formData
 //		description: Name of 1st profile field to be added to this account's profile.
@@ -311,7 +324,8 @@ func parseUpdateAccountForm(c *gin.Context) (*apimodel.UpdateCredentialsRequest,
 			form.FieldsAttributes == nil &&
 			form.Theme == nil &&
 			form.CustomCSS == nil &&
-			form.EnableRSS == nil) {
+			form.EnableRSS == nil &&
+			form.HideCollections == nil) {
 		return nil, errors.New("empty form submitted")
 	}
 

internal/api/client/accounts/followers.go

@@ -39,6 +39,8 @@ import (
 // <https://example.org/api/v1/accounts/0657WMDEC3KQDTD6NZ4XJZBK4M/followers?limit=80&max_id=01FC0SKA48HNSVR6YKZCQGS2V8>; rel="next", <https://example.org/api/v1/accounts/0657WMDEC3KQDTD6NZ4XJZBK4M/followers?limit=80&min_id=01FC0SKW5JK2Q4EVAV2B462YY0>; rel="prev"
 // ````
 //
+// If account `hide_collections` is true, and requesting account != target account, no results will be returned.
+//
 //	---
 //	tags:
 //	- accounts

internal/api/client/accounts/following.go

@@ -39,6 +39,8 @@ import (
 // <https://example.org/api/v1/accounts/0657WMDEC3KQDTD6NZ4XJZBK4M/following?limit=80&max_id=01FC0SKA48HNSVR6YKZCQGS2V8>; rel="next", <https://example.org/api/v1/accounts/0657WMDEC3KQDTD6NZ4XJZBK4M/following?limit=80&min_id=01FC0SKW5JK2Q4EVAV2B462YY0>; rel="prev"
 // ````
 //
+// If account `hide_collections` is true, and requesting account != target account, no results will be returned.
+//
 //	---
 //	tags:
 //	- accounts

internal/api/client/admin/reportsget_test.go

@@ -236,6 +236,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetAll() {
             "verified_at": null
           }
         ],
+        "hide_collections": true,
         "role": {
           "name": "user"
         }
@@ -397,6 +398,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetAll() {
             "verified_at": null
           }
         ],
+        "hide_collections": true,
         "role": {
           "name": "user"
         }
@@ -618,6 +620,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetCreatedByAccount() {
             "verified_at": null
           }
         ],
+        "hide_collections": true,
         "role": {
           "name": "user"
         }
@@ -839,6 +842,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetTargetAccount() {
             "verified_at": null
           }
         ],
+        "hide_collections": true,
         "role": {
           "name": "user"
         }

internal/api/model/account.go

@@ -94,12 +94,16 @@ type Account struct {
 	// CustomCSS to include when rendering this account's profile or statuses.
 	CustomCSS string `json:"custom_css,omitempty"`
 	// Account has enabled RSS feed.
+	// Key/value omitted if false.
 	EnableRSS bool `json:"enable_rss,omitempty"`
+	// Account has opted to hide their followers/following collections.
+	// Key/value omitted if false.
+	HideCollections bool `json:"hide_collections,omitempty"`
 	// Role of the account on this instance.
-	// Omitted for remote accounts.
+	// Key/value omitted for remote accounts.
 	Role *AccountRole `json:"role,omitempty"`
 	// If set, indicates that this account is currently inactive, and has migrated to the given account.
-	// Omitted for accounts that haven't moved, and for suspended accounts.
+	// Key/value omitted for accounts that haven't moved, and for suspended accounts.
 	Moved *Account `json:"moved,omitempty"`
 }
 
@@ -172,6 +176,8 @@ type UpdateCredentialsRequest struct {
 	CustomCSS *string `form:"custom_css" json:"custom_css"`
 	// Enable RSS feed of public toots for this account at /@[username]/feed.rss
 	EnableRSS *bool `form:"enable_rss" json:"enable_rss"`
+	// Hide this account's following/followers collections.
+	HideCollections *bool `form:"hide_collections" json:"hide_collections"`
 }
 
 // UpdateSource is to be used specifically in an UpdateCredentialsRequest.

internal/processing/account/relationships.go

@@ -31,11 +31,25 @@ import (
 // FollowersGet fetches a list of the target account's followers.
 func (p *Processor) FollowersGet(ctx context.Context, requestingAccount *gtsmodel.Account, targetAccountID string, page *paging.Page) (*apimodel.PageableResponse, gtserror.WithCode) {
 	// Fetch target account to check it exists, and visibility of requester->target.
-	_, errWithCode := p.c.GetVisibleTargetAccount(ctx, requestingAccount, targetAccountID)
+	targetAccount, errWithCode := p.c.GetVisibleTargetAccount(ctx, requestingAccount, targetAccountID)
 	if errWithCode != nil {
 		return nil, errWithCode
 	}
 
+	if targetAccount.IsInstance() {
+		// Instance accounts can't follow/be followed.
+		return paging.EmptyResponse(), nil
+	}
+
+	// If account isn't requesting its own followers list,
+	// but instead the list for a local account that has
+	// hide_followers set, just return an empty array.
+	if targetAccountID != requestingAccount.ID &&
+		targetAccount.IsLocal() &&
+		*targetAccount.Settings.HideCollections {
+		return paging.EmptyResponse(), nil
+	}
+
 	follows, err := p.state.DB.GetAccountFollowers(ctx, targetAccountID, page)
 	if err != nil && !errors.Is(err, db.ErrNoEntries) {
 		err = gtserror.Newf("db error getting followers: %w", err)
@@ -76,11 +90,25 @@ func (p *Processor) FollowersGet(ctx context.Context, requestingAccount *gtsmode
 // FollowingGet fetches a list of the accounts that target account is following.
 func (p *Processor) FollowingGet(ctx context.Context, requestingAccount *gtsmodel.Account, targetAccountID string, page *paging.Page) (*apimodel.PageableResponse, gtserror.WithCode) {
 	// Fetch target account to check it exists, and visibility of requester->target.
-	_, errWithCode := p.c.GetVisibleTargetAccount(ctx, requestingAccount, targetAccountID)
+	targetAccount, errWithCode := p.c.GetVisibleTargetAccount(ctx, requestingAccount, targetAccountID)
 	if errWithCode != nil {
 		return nil, errWithCode
 	}
 
+	if targetAccount.IsInstance() {
+		// Instance accounts can't follow/be followed.
+		return paging.EmptyResponse(), nil
+	}
+
+	// If account isn't requesting its own following list,
+	// but instead the list for a local account that has
+	// hide_followers set, just return an empty array.
+	if targetAccountID != requestingAccount.ID &&
+		targetAccount.IsLocal() &&
+		*targetAccount.Settings.HideCollections {
+		return paging.EmptyResponse(), nil
+	}
+
 	// Fetch known accounts that follow given target account ID.
 	follows, err := p.state.DB.GetAccountFollows(ctx, targetAccountID, page)
 	if err != nil && !errors.Is(err, db.ErrNoEntries) {

internal/processing/account/update.go

@@ -284,6 +284,10 @@ func (p *Processor) Update(ctx context.Context, account *gtsmodel.Account, form
 		account.Settings.EnableRSS = form.EnableRSS
 	}
 
+	if form.HideCollections != nil {
+		account.Settings.HideCollections = form.HideCollections
+	}
+
 	if err := p.state.DB.UpdateAccount(ctx, account); err != nil {
 		return nil, gtserror.NewErrorInternalError(fmt.Errorf("could not update account %s: %s", account.ID, err))
 	}

internal/processing/fedi/collections.go

@@ -140,15 +140,25 @@ func (p *Processor) FollowersGet(ctx context.Context, requestedUser string, page
 	params.ID = collectionID
 	params.Total = total
 
-	if page == nil {
+	switch {
+
+	case receiver.IsInstance() ||
+		*receiver.Settings.HideCollections:
+		// Instance account (can't follow/be followed),
+		// or an account that hides followers/following.
+		// Respect this by just returning totalItems.
+		obj = ap.NewASOrderedCollection(params)
+
+	case page == nil:
 		// i.e. paging disabled, return collection
 		// that links to first page (i.e. path below).
+		params.First = new(paging.Page)
 		params.Query = make(url.Values, 1)
 		params.Query.Set("limit", "40") // enables paging
 		obj = ap.NewASOrderedCollection(params)
-	} else {
-		// i.e. paging enabled
 
+	default:
+		// i.e. paging enabled
 		// Get the request page of full follower objects with attached accounts.
 		followers, err := p.state.DB.GetAccountFollowers(ctx, receiver.ID, page)
 		if err != nil {
@@ -239,15 +249,24 @@ func (p *Processor) FollowingGet(ctx context.Context, requestedUser string, page
 	params.ID = collectionID
 	params.Total = total
 
-	if page == nil {
+	switch {
+	case receiver.IsInstance() ||
+		*receiver.Settings.HideCollections:
+		// Instance account (can't follow/be followed),
+		// or an account that hides followers/following.
+		// Respect this by just returning totalItems.
+		obj = ap.NewASOrderedCollection(params)
+
+	case page == nil:
 		// i.e. paging disabled, return collection
 		// that links to first page (i.e. path below).
+		params.First = new(paging.Page)
 		params.Query = make(url.Values, 1)
 		params.Query.Set("limit", "40") // enables paging
 		obj = ap.NewASOrderedCollection(params)
-	} else {
-		// i.e. paging enabled
 
+	default:
+		// i.e. paging enabled
 		// Get the request page of full follower objects with attached accounts.
 		follows, err := p.state.DB.GetAccountFollows(ctx, receiver.ID, page)
 		if err != nil {

internal/processing/fedi/status.go

@@ -156,6 +156,7 @@ func (p *Processor) StatusRepliesGet(
 	if page == nil {
 		// i.e. paging disabled, return collection
 		// that links to first page (i.e. path below).
+		params.First = new(paging.Page)
 		params.Query = make(url.Values, 1)
 		params.Query.Set("limit", "20") // enables paging
 		obj = ap.NewASOrderedCollection(params)

internal/typeutils/internaltofrontend.go

@@ -170,7 +170,7 @@ func (c *Converter) AccountToAPIAccountPublic(ctx context.Context, a *gtsmodel.A
 	// Bits that vary between remote + local accounts:
 	//   - Account (acct) string.
 	//   - Role.
-	//   - Settings things (enableRSS, theme, customCSS).
+	//   - Settings things (enableRSS, theme, customCSS, hideCollections).
 
 	var (
 		acct            string
@@ -178,6 +178,7 @@ func (c *Converter) AccountToAPIAccountPublic(ctx context.Context, a *gtsmodel.A
 		enableRSS       bool
 		theme           string
 		customCSS       string
+		hideCollections bool
 	)
 
 	if a.IsRemote() {
@@ -211,6 +212,7 @@ func (c *Converter) AccountToAPIAccountPublic(ctx context.Context, a *gtsmodel.A
 			enableRSS = *a.Settings.EnableRSS
 			theme = a.Settings.Theme
 			customCSS = a.Settings.CustomCSS
+			hideCollections = *a.Settings.HideCollections
 		}
 
 		acct = a.Username // omit domain
@@ -277,6 +279,7 @@ func (c *Converter) AccountToAPIAccountPublic(ctx context.Context, a *gtsmodel.A
 		Theme:           theme,
 		CustomCSS:       customCSS,
 		EnableRSS:       enableRSS,
+		HideCollections: hideCollections,
 		Role:            role,
 		Moved:           moved,
 	}

internal/typeutils/internaltofrontend_test.go

@@ -161,6 +161,7 @@ func (suite *InternalToFrontendTestSuite) TestAccountToFrontendAliasedAndMoved()
         "verified_at": null
       }
     ],
+    "hide_collections": true,
     "role": {
       "name": "user"
     }
@@ -1313,6 +1314,7 @@ func (suite *InternalToFrontendTestSuite) TestReportToFrontend2() {
         "verified_at": null
       }
     ],
+    "hide_collections": true,
     "role": {
       "name": "user"
     }
@@ -1428,6 +1430,7 @@ func (suite *InternalToFrontendTestSuite) TestAdminReportToFrontend1() {
           "verified_at": null
         }
       ],
+      "hide_collections": true,
       "role": {
         "name": "user"
       }
@@ -1599,6 +1602,7 @@ func (suite *InternalToFrontendTestSuite) TestAdminReportToFrontend2() {
           "verified_at": null
         }
       ],
+      "hide_collections": true,
       "role": {
         "name": "user"
       }
@@ -1864,6 +1868,7 @@ func (suite *InternalToFrontendTestSuite) TestAdminReportToFrontendSuspendedLoca
       "emojis": [],
       "fields": [],
       "suspended": true,
+      "hide_collections": true,
       "role": {
         "name": "user"
       }

testrig/testmodels.go

@@ -702,7 +702,7 @@ func NewTestAccountSettings() map[string]*gtsmodel.AccountSettings {
 			Sensitive:       util.Ptr(true),
 			Language:        "fr",
 			EnableRSS:       util.Ptr(false),
-			HideCollections: util.Ptr(false),
+			HideCollections: util.Ptr(true),
 		},
 	}
 }

web/source/settings/user/profile.tsx

@@ -65,6 +65,7 @@ function UserProfileForm({ data: profile }) {
 		- file avatar
 		- file header
 		- bool enable_rss
+		- bool hide_collections
 		- string custom_css (if enabled)
 		- string theme
 	*/
@@ -98,6 +99,7 @@ function UserProfileForm({ data: profile }) {
 		locked: useBoolInput("locked", { source: profile }),
 		discoverable: useBoolInput("discoverable", { source: profile}),
 		enableRSS: useBoolInput("enable_rss", { source: profile }),
+		hideCollections: useBoolInput("hide_collections", { source: profile }),
 		fields: useFieldArrayInput("fields_attributes", {
 			defaultValue: profile?.source?.fields,
 			length: instanceConfig.maxPinnedFields
@@ -208,6 +210,10 @@ function UserProfileForm({ data: profile }) {
 				field={form.enableRSS}
 				label="Enable RSS feed of Public posts"
 			/>
+			<Checkbox
+				field={form.hideCollections}
+				label="Hide who you follow / are followed by"
+			/>
 
 			<div className="form-section-docs">
 				<h3>Advanced</h3>

web/template/profile.tmpl

@@ -98,9 +98,9 @@
                 <dt>Posts</dt>
                 <dd>{{- .account.StatusesCount -}}</dd>
                 <dt>Followed by</dt>
-                <dd>{{- .account.FollowersCount -}}</dd>
+                <dd>{{- if .account.HideCollections -}}<i>hidden</i>{{- else -}}{{- .account.FollowersCount -}}{{- end -}}</dd>
                 <dt>Following</dt>
-                <dd>{{- .account.FollowingCount -}}</dd>
+                <dd>{{- if .account.HideCollections -}}<i>hidden</i>{{- else -}}{{- .account.FollowingCount -}}{{- end -}}</dd>
             </dl>
         </section>
         <div class="statuses-wrapper" role="region" aria-label="Posts by {{ .account.Username -}}">