Trusted users with high trust levels may edit content from other users.
The trusted_users_can_edit_others
site setting, which is on by default, allows Trust Level 3 and Trust Level 4 users to edit other user’s content on the site. The capabilities it gives to a user depends on their Trust Level.
Trust Level 3
Trust Level 3 users can edit topic titles and recategorize topics that are in a category they have permission to create topics in. Trust Level 3 users cannot edit archived topics or personal messages.
Trust Level 3 users cannot edit the content of other user’s posts.
Trust Level 4
Trust Level 4 users can edit topic titles and recategorize topics that are in a category they have permission to create topics in. Trust Level 4 users can edit archived topics, but they cannot edit personal messages.
Trust Level 4 users can edit post content for topics they have permission to create posts in.