Ban signatures. Problem solved.
Why not include merit requirements in signature campaign?
I think if we ban signature bitcointalk will be cripple for it was started for a long time with signature campaign and more bitcointalk followers change lives from nothing to something.
Next, require the bounty manager to be more strict than before. Make the requirements harder.
If the merit system is already being abused by farmers and alts then it will just be abused in the same fashion as it already is. Whilst in theory it's one more hoop to jump through people will just find a way to game the system and several users have already been caught giving merit to others just so they could join campaigns. As for being more strict on campaign managers this is something I've been pushing for a while but we can't do anything without theymos' approval.