Somehow I don't think bittorent under TOR would catch on. Unless you don't mind waiting two weeks to watch your new movie.
Tor could be used only for trackers, not the actual data.
Note for clarity: The data transfer would not remain anonymous, only the trackers facilitating it.
It's gonna be hard to identify who is usung TOR, and doing so will require to take measures that will be against freedom, like controlling what people are installing on their computers.
It's very easy to identify most people who use Tor (almost all nodes are publicly available). You can't know what they use it for, but if merely using it becomes illegal, the secret police will have a very neat list of houses to visit.
it would be a real sad day when the world regresses to such a state - i mean, why did the free world win WWII for then?
What free world? Soviet Union was on the winning side of WWII, and the result for many European countries (including mine) was decades of communist repressions. History is more complex than a Hollywood movie, with good guys vs bad guys.
For a moment I thought chii was being sarcastic. I had that hope.
Perhaps something like this work[1] could be useful to make it harder to shut down even if the list of nodes is public.
A handful of countries attempt to block Tor and only two (China and Iran) do it seriously, using deep packet inspection (still doesn't work because of obfsproxy, duh). Even though, not even China and Iran outlawed it.