This is brilliant! I REALLY dislike it when people pirate games, software, films, etc. It’s just as much stealing as taking a car from the street! The only exceptions I have is that if; it is a game you have already paid for a version of (ie an old console game which you then emulate to play again), if the game cannot be played easily due to age and there are no new version (old console games again!) or if you legitimately cannot afford it by any reasonable means.
To fight back the developers of Game Dev Tycoon released a version of the game on torrent sites on the net, but put something into the game where after 2 years the company the players made goes bankrupt due to piracy!