I'd generally say no, just because adding things just for the sake of them isn't that great. Adding stuff because it server a purpose is great though. In the case of GTA though, I certainly wouldn't mind seeing this done. GTA has always been controversial, and this would actually be a fairly neat way to continue with that. That said, I'm not expecting it to happen, as it might significantly hurt the game commercially. It would still be a huge success, but large groups of people would also be put off by it.