I'm not seeing this feature in the dev. I'd like to allow anonymous posting for registered users. They have to register to post which would enable banning users and they can post while hiding their username from everyone else except admin/moderators. Replies will be by post number or 'OP' for the first post/thread starter. Throughout the site instead of avatars showing it will be an icon linked to a category, set by admin. And within that category it could be an arbitrary place holder like a bullet.
Intent would be for Leaks sites, Classifieds sites, etc.