Just a suggestion.
You need to increase the payouts for hero and Sr members. Other campaigns are paying much more and this small amount encourages spam. Instead you can reduce the min post required, increase the min chars and of course, increase the payout per post.
I have thought of joining others many times but the advanced automated payment system of yours keeps me in.
Increase payment of signature and reduce minimum post required, Actually that will make increase spam here. I think many people here have been comfortable with the rules now and this has reduced spam
Sorry, I meant "max" posts; don't know what was I thinking. "max" payout posts should decrease and the payout per post should increase proportionally to reduce spammy posts.