Here's (volokh.com) an analysis of the new law. It pretty much concludes that it isn't nearly as stupid as it sounds. Basically, it'll just prevent harassment over the internet so trolls are still able to run wild and free. On some other message board at least.
He's got that hand-waving deal. He can become INVISIBLE! This means MONEY, Dawg! - AWARulz on Cena.
Well, like http://kb.mozillazine.org/Browser.sessionhistory.max_total_viewers says: Pages that were recently visited are stored in memory in such a way that they don't have to be re-parsed (this is different than the cache).