What about adding a "max-cycles" attribute to iframe? Ad network fills the frame with whatever it wants until it runs out of gas, after which no more computatio

What about adding a "max-cycles" attribute to iframe? Ad network fills the frame with whatever it wants until it runs out of gas, after which no more computation is allowed. Content creators can choose some high limit. But users can set a global value, or install an "ad diet" plugin to pick and choose. Content creator can post a div to complain, "Aw c'mon, give my ad buddies more than 100 measly cycles. I gotta eat!" Better than being blocked outright.