Hence, how to drive up pay rates? I only know to cut supply (less shitposters sigcamp participants) or increase demand (more casinos service providers).
Or simply, the campaign manager should come into an agreement to set a minimum payrate per rank then projects willing to pay participants above the minimum payrate are free to do so but no projects will pay below the minimum. This way project hoping to employ the best posters on the forum will be forced to increase their payrate to attract them. Some signature payrate are just so ridiculous they only attracts spamming.
For the payrate, I recommend minimum;
Member = 0.002
BTCFull member = 0.004
BTCSnr member = 0.006
BTCHero member = 0.008
BTCLegendary = 0.01
BTC