In theory, yes, but you have no idea how incompetent German courts are. They believe everything copyright holders feed them. There was a similar case last year

In theory, yes, but you have no idea how incompetent German courts are. They believe everything copyright holders feed them. There was a similar case last year that, fortunately, went very badly for the copyright attourneys. Thousands of users were redirected from an ad to copyrighted porn videos and then C/D'd. The attourneys got into a lot of trouble and even lost their license, but their clients still ran off with the money. The case was only reviewed when it got media attention, but using torrents makes it even more difficult to prove the scam.