The shame of it is, there's a lot of webmasters as publishers using Adsense (as opposed to advertisers using Adwords) who in Google's overzealousness declared click frauders, kept their monies and tossed them out. Are we talking Russian kids with music sites and shit?
Nope, lots of American, Canadian and European Mom types with sites about sewing and beanie babies and educations sites were labeled this. You never hear about that though. They'll never see their money again.
Google fucks up on both sides of the fence majorly. Just the big advertisers can afford the big lawyers. Sucks.