I realize that (largely) PTC traffic is very untargeted and most members aren't even looking at the site being shown to them, but I'm curious if there are any applicable uses for PTC traffic. I'd be interested in hearing experiences from those of you who have bought this kind of traffic in the past, both positive (how did your sites benefit) and negatives (what were the consequences). How does a PTC traffic flood affect SERP rank? Does Google recognize this traffic as garbage and mark your site with a penalty, or can the traffic actually be used to climb the search engines? How do advertisers respond to this kind of traffic? Do accounts automatically trigger a freeze/investigation? If so, is there any way you could claim that someone else used the traffic to hurt your site? Is attacking someone's site this way considered illegal? Can this kind of traffic be used to increase views to statistic tracking sites (YouTube, Squidoo, etc.) if it doesn't violate the ToS?