i was part of many signature campaigns. at the moment i don't participate in one because i did not get a place in one that was possible for me.
what do you think about campaigns in which you have to post 30 or 40 post per week. do you think this is really possible without just posting to reach the goal?
I guess they have the right to demand whatever they like of their participants. It's not like you are forced to post. You either do it or not and the whole blame for spamming, if that happens, falls on you. I wouldn't join such campaign because I know my limits. I can post 40 times a week if I have the time, it's not that hard, but joining a campaign that won't pay me and kick me out if I don't reach 40 every single week would be a waste of time for me.