How do you distinguish the following two scenarios:
- User posts an earnest, but bad, answer. Gets downvote(s). Improves answer. Gets upvote(s) and badge.
- User posts a terrible answer to attract downvotes to get this badge. Gets downvote(s). Posts a real, and genuinely useful answer. Gets upvote(s) and badge.
Improving bad answers is a good behavior that should be encouraged, but posting good answers the first time is still better. This badge would encourage initially giving lousy answers as much as it encourages improving them.
This is similar to potential problems with the peer pressure badge encouraging gamingthe peer pressure badge encouraging gaming, and Tumbleweed which is more of a consolation prize than encouraging desirable behavior.