In some users’ lists of followers there are anonymous followers:

These anonymous users are user accounts that have been deleted. inSided keeps all their content and doesn’t distinguish between topics, comments, likes or - in this case - followings.

I propose that followings get removed when a user account is deleted, because information like followings don’t serve any purpose anymore, as the following (the connection between the users) doesn’t exist anymore, whereas the content can still exist even without being associated with a registered user.