I haven't had any luck with them either... i'm getting more traffic from pinterest (and of course that "warning emails"
) ) . It's hard to get traffic because there are thousands of pics popping out ever hour so your pic might not get noticed and on the other hand if you click the image to go to the original image it takes la 2 - 3 clicks to get there...
Don't waste your time with pinning on sex.com....