Get me out of the list, I went with dicebitco.in
I think if your on the list, and switch to another campaign, the only thing you have to do is not claim payment. You should be fine.
Stunna really needs to update all of this, which is one of the reasons I left. In my new campaign I get paid more for a site I love, and the admin is always online and ready to answer questions about the site or campaign.