* `registration_reason_length`: Maximum registration reason length (default: `500`).
* `external_user_synchronization`: Enabling following/followers counters synchronization for external users.
* `cleanup_attachments`: Remove attachments along with statuses. Does not affect duplicate files and attachments without status. Enabling this will increase load to database when deleting statuses on larger instances.
+* `show_reactions`: Let favourites and emoji reactions be viewed through the API (default: `true`).
## Welcome
* `direct_message`: - welcome message sent as a direct message.
* `federated_timeline_removal`: List of instances to remove from Federated (aka The Whole Known Network) Timeline.
* `reject`: List of instances to reject any activities from.
* `accept`: List of instances to accept any activities from.
-* `followers_only`: List of instances to force posts as followers-only.
+* `followers_only`: List of instances to decrease post visibility to only the followers, including for DM mentions.
* `report_removal`: List of instances to reject reports from.
* `avatar_removal`: List of instances to strip avatars from.
* `banner_removal`: List of instances to strip banners from.