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OP that is great research as usual.
I'm really starting to think that more then 50% of bounty hunters are cheaters.
I don't think this number is 50% overall campaigns, but if we look only altcoin campaigns this number may even be higher than 50%.
They probably can't handle everything on their own, so they hire family, friends and relatives and this pays off better than regular job sometimes.
The issue is, most managers are scared to death if they take away allowing newbies to participate, then the bounty they are running will have 5 participants.
All good managers I know don't even accept newbies in campaigns because they can't wear signatures, and twitter social media campaigns can be much harder to track.
I like the idea of one manager making campaign that pays if someone catches member who is cheating, and I think all managers should do something similar.
Even symbolic payment would make forum much cleaner place.