Yes, I'll probably add that to the Floor Browser so there's a way in-game to upload levels. With the new account system I'm planning on introducing in the Beta versions, it should let players do that as a part of it. As for level moderation, there will probably be some kind of report button on each level's entry, which would let the player submit a report that would be sent to me so I can see it and remove the inappropriate level from the Floor Browser, if it somehow got past the moderation that would happen during the approval process for an uploaded custom floor.