Starts to sound like RIAA and MPAA and APB (Score -1, Troll)

Sending letters to copyright violators is usaly something that APB of sweden and I think MPAA http://www.mpaa.org/ does. Many file-sharers oppose this. And use the same argument as RMS http://stallman.org/ that you still have your copy after the copying. So that must mean that the GPL people still have their software after the companies have copied it. So what have the GPL people to complain about.