Thanks DGC.
Maxo, I entirely agree with you. As I say, we would never do anything like this unless we have proof of sustained, repeated, malicious click fraud. One rogue domain or a couple of rogue domains in an account wouldn't prompt serious action, but where fraudulent behaviour is obviously at play, then we must have and do have a 0 tolerance policy. There are so many parking companies around that people can simply make a living hopping from one to the next. Disgustig but reality. One tactic that is being employed that we are seeing is people pretending to be a) women who don't know what they're doing (not saying anything about our female customers who number among our best, but I have ssen some crazy emails) or b) 'newbies' to make us feel sorry for them that they couldn't possibly generate such obviously fake traffic. I wonder where these people all go to meet.
Our current status means that we have to give everyone the benefit of the doubt, but I spent the last three months of my previous job almost exclusively dealing with click fraud, so I know it when I see it. It kills PPC for us, for you guys and for the industry and, with the growth of the industry is sadly rampant.
Ed