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.
There is no rules on minimum pay rates to avoid spam, in my opinion.
A campaign results in spam or not from their participants, it mainly depends on their management style and rule:
Lol sometimes I wonder how you reason, we're brainstorming on possible solution to increase the payrate for campaigns which will also encourage quality contributions just as merit have, as participants tends to put in more efforts into their style of writing when there's a motivator (e.g to retain their spot in campaign, pass on a vital information or get some merits). Currently I feel the signature participants are been treated as salves, the payrate wity requirements associated with most signature campaigns aren't encouraging.
I have regretted the opportunity of managing a campaign just because of the poor payrate the campaign insisted on paying (and now the campaign is been managed by someone else on the forum). There's no minimum payrate simply because the forum doesn't moderate signature campaign and nothing else. Also i wasn't asking them (the forum) to moderate, just recommending the campaign managers put heads together to workout some strategy to keep the signature industry fair for the participants.