Hello one more thing that keeps coming to my mind. Say for example someone click frauds with his adsense account or if he is a fool he clicks on his own ads. Next google cathes him and bans his account. Now does google refunds the money back to the advertiser to whom this fraud clicks have costed some money? Or does google keep this money for themselves? My opinion is that google is keeping this money for themselves.
Either way, does it really make a difference to your life anyway? Unless you are the advertiser it doesn't (and if you are this should be posted in the Adwords forum). It boggles the mind why some people feel the need to start such threads...
Because this is the forum and people discuss over here that's why. If your mind boggles with this kind of simple questions then i don't know what will happen if i ask some tough ones.