Are you saying that most torrent trackers turn a blind eye to the illegal downloads? That tactic didn't work for Napster and it's not going to work for Torrents. Eventually most of the major players will get shut down.
Sure...some will always exist or new methods will be found but intellectual property protection is important to our global economy. Torrent is great technology but in truth...it's mostly used to circumvent copyrights.
I don't see the RIAA going after legit sites offering linux distro torrents. They are clearly targetting players in the movie and music torrent field.