no, the public nature of torrents lets anyone see who is downloading any torrent, as long as you have access to that tracker, which everyone does in the case of public trackers (you can even see this yourself with most torrent clients). they then take that list of IPs, find what ISP owns each, and tells them "at this time and date the user with this IP downloaded our content illegally, please do something about it." fortunately most ISPs don't actually give a shit since they're more interested in collecting service fees than banning users; their only obligation is to notify the customer every time this happens, and disconnect service if it happens a certain number of times.