I played MW 3 on release, cracked. Same with AC II, AC II: Brotherhood and so on and so furth...
I rather see the DRM being removed officially, not through cracks. Hunting down the cracks is usually a PITA (especially if there are different cracks for different versions of the game), you cannot be fully sure what "extras" (like trojans) they might contain, whether the cracked version will work with official expansion packs or latest updates or whatever, who to contact for support if I have problems with the cracked game(s)... no thanks. Not to mention that distribution of such cracks is illegal in many countries.
Just to give an example, I now have over 140 GoG games. If I was supposed to hunt down and apply a crack for each of them individually (first making sure which version each game is so that I get the correct crack), that's simply something I do not wish to do. It could just as well be proposed that I skip the whole buying part, and simply pirate each full game DRM-free.
That's the whole point of GoG as well, making it as painless as possible to get and run the games.
Plus, buying DRM games (and then cracking them myself) sends the wrong signal to publishers that I'm fine with their permanent DRM.