I think moderators should be able to delete posts and comments, deactivate (ban) users, promote other users to moderator status, and have some flair next to their name. How to deal with related models on post/comment deletion will require some care (like, if a comment in the middle of a thread is deleted, we might want to just render that comment as saying "(deleted by moderator)" without touching its child comments, but would imply not actually deleting its underlying database model even if we want to talk about the comment having been "deleted", because the child comments' foreign keys still need to point somewhere).
I think moderators should be able to delete posts and comments, deactivate (ban) users, promote other users to moderator status, and have some flair next to their name. How to deal with related models on post/comment deletion will require some care (like, if a comment in the middle of a thread is deleted, we might want to just render that comment as saying "(deleted by moderator)" without touching its child comments, but would imply not actually deleting its underlying database model even if we want to talk about the comment having been "deleted", because the child comments' foreign keys still need to point somewhere).