I saw that Rollin.io has a bounty sistem.
As for what I saw around managers aren't quite doing their jobs!
I mean just checking last posts on 50 users doesn't mean that he sees if the user is double posting a post from page 2 on page 9!
What I'm offering is a bad ass mother fucker service! All users involved in dig campaigns are knowing that spam is not tolerated and if I mark them as spam I will prove that their post is spam ! This being said the promoter is not forced to pay the user anymore with 5 BTC but instead he will pay me 75% of what the users should have received! It's a win-win-win situation! I win, promoter wins and forum wins!
It's not a win for the signature campaign. It doesn't matter if a person is spamming or not, they are getting the exposure they want either way. Yes, they employ anti-spam rules to keep the forum clean, but in the grand scheme of things, they get the same service from their participants if their posts are spam or organic. Paying you 75% of what they would be paying someone to host their signature on hundreds of posts for essentially nothing is not a sound business decision for them. Maybe you could get business at 5% or something.