I don't think there's a particularly big risk of extradition to the US for most people, even if their site does use a .com or .net domain. It's mainly an issue in the UK where there are various extradition treaties with the US - but since there was something of a public outcry when the US tried to get that hacker guy extradited (Gary Mckinnon, I think his name was), it's looking likely that the government will try and do something about the situation. So I think BakaBT probably has nothing to worry about.