if there's no way to stop these bounty buttholes from cheating because they can create an unlimited number of alt accounts, then there's not much these projects can do to stop the abuse aside from requiring KYC in order to participate, and I seriously doubt that's ever going to happen.
This reminds me of the myth of Sisyphus. A Greek who was condemned to climb a huge stone up a hill, and when he got to the top the stone fell back down and he had to start all over again.
I understand that cheating does not involve their activity on the forum but the activity on Twitter, Youtube etc., as newbies do not participate in the sig campaign since they cannot wear a signature.
I think it's an awesome job but I doubt there is any way to stop it if they can create potentially infinite new newbie accounts.