Lol as long as you're not the original source nothings going to happen. I had about 800MB up/down on Elitetorrents when it went down. Didnt even get a letter in the mail. Although I did get one from my ISP once (when my dad used a public tracker), but all they can do is turn off your service.
It sure was quite a thrill seeing this though. All because of a stolen workprint of the last Star Wars 2 days before the theatrical release. My dad was still seeding that torrent on the tracker when I called him about the site
http://en.wikipedia.org/wiki/Operation_D-Elite