It's funny because DRM didn't stop the piracy of the game at all in the first place. There were working torrents for DKS days after the game got released.
At this point it's doing nothing but preventing people from buying the game. There's a bunch of people on the Steam forums who won't buy the game (even on sale) because of the DRM.
http://forums.steampowered.com/forums/showthread.php?t=2257430
