Instead of complaining about piracy, or tricking pirates by uploading gimped versions of their titles to torrent sites, why not take advantage of the added attention by uploading polished shareware demos of their games?
Pirates have a unlimited amount of games at their dispose, and probably will not even make it all the way through the full version of the game they just downloaded....unless they really like. I say give them a robust demo version and offer a easy way to upgrade if they like it.
Hell, just give the torrents a "part 1" shareware/trial version and let it spread and gather positive feedback. Then when ready to release the full version send out the "part 2" of the game to the torrents and offer "part 3" as a paid version of the full game on your own secure site.