User blog comment:ItsMirre/New to this/@comment-24150802-20150812140537/@comment-24150802-20150812151605

Yes, you can add Cosplay back into the Equipment category if you wish. It's a good place for it Sorry about that!

Your category ideas have some merit, although I think you might be right about the Avatar category being similar to the Costume idea. The Badges (or whatever it could be called) might be useful if there isn't a similar one now.