gregbo - 1:18 am on Dec 3, 2006 (gmt 0)

It only takes one of the "not many" to generate fraudulent traffic using faked referrers, etc. In my experience, it is wise to be prepared for fraudulent traffic.

Ultimately, there is no guaranteed defense from being banned. My opinion: don't rely on AdSense revenue.

Re: your point about the courts, I'm looking forward to the day when G tries to take a publisher to court, on the grounds that the publisher owes money due to "invalid" clicks that were determined long after the actual clicks were received. I hope the publisher has a world-class cyber-savvy legal team that demands that G give some kind of real proof of activity that would result in the damages claimed. Maybe then, we might get some honest statements about the ability to reliably detect "invalid" clicks.