Getting caught chances are like one in 120k & it's random no one is selected or targetted ...it's just some Production companies or isp's keep eye on their customers to make example of and try to inject their peer tracker software within random public trackers where people often tend to download movies/musics from . You need to be careful what you are using like i told you those sites which are open for registrations out there which doesn't even require registration to download are full of those bloating companies who like to send notices to people just to make few bucks . Mostly people like to ignore those letters but sometimes they force you to go through deal to settle course ofcourse upto minimum $500 fine .