I haven’t banned anyone, and as far as I know none of the other users on my instance currently have moderation privileges. So why am I seeing two users in a “banned” list when I visit my instance settings page? What horrible, unforgivable things did these users have to do for my instance to ban them seemingly of its own accord…?

(I have manually unbanned these users since taking the screenshot, since I didn’t see any reason why they should have been banned in the first place.)