No one is going to want to jump through hoops to use a currency.
Well, people are doing it now and probably will later too. No difference brah.
Bit of a difference between going through 1 local exchange and not having to worry about government interference than going through a foreign exchange and jumping through various hoops to get your cash, like having a check sent or a wire transfer, rather than a direct bank deposit. There is quite a difference.
Well they failed with piratebay didn't they, and bitcoins are even more decentralized than bittorrent, Piratebay at least have a website where they share links to the torrents. Also, it's a lot easier for a government to explain why it's wrong to pirate then why it's wrong to trade in a virtual currency after mutual agreement. Don't forget that most of us live in a democracy or at least a approximation to one. If most people in, in this case US, are aware of bitcoins and don't agree with a banning of them, Obama will have to think twice. Now or never, now not so many people are aware of it