In Google Analytics we have two ways to exclude traffic from a specific computer/IP/Class C. The first is a Javascript cookie and the second is "filters" Why google doesn't adopt this for Adsense also ?
Because they want to sell ads to anyone and do not care if we make 1/2 a cent per click. They should make people pay more per ad if they get filtered by so many people just like the raise ads prices if you advertise if it has low click rate. I am tired of filtering ads and took adsense off some sites that always get smart priced.