What I am trying to implement into campaigns I manage is users must have merits to join. I currently am allowing users without merits to join(partially), but have started paying higher rates to users with merits. Eventually I will make it a requirement to have merits in order to join campaigns I manage. I would also like to go as far as you must earn merits each week to stay in a campaign.

If all managers do something like I mentioned above, then eventually these shit accounts are phased out and not making any money anymore rendering their accounts useless. With the merit system being fairly new, I can't go full fledged merit crazy on everyone yet. Gotta give ppl a little time to earn some.