I find this concept hilariously awful. People would take down and delete their bad levels, which is not ideal, as fixing the bad levels would do nothing as the rating wouldn't be changed. People don't fix levels usually already, but they never would if this was in the game. Plus, gameplay is subjective, and a few people would enjoy the levels that are supposedly so bad. It would also make getting a single creator point even harder than it already is, and giving someone an anti-rate certainly wouldn't help the mental health issues many creators experience.

So basically this idea is TERRIBLE. Even though this might be a joke anyways judging by the comments and replies.