Well, some here are worried about cheating. I'm worried about my convenience (analysing a few moves in 2 mins instead of 10). If you look at what will hamper people's fun (it's a game afterall) more, I think it's the latter. Especially since cheating (if you want to call it that, i think it's hardly worse than a co-worker walking in and saying 'he, thats a bad move') cannot be ruled out in correspondence chess anyway.
Sorry, but I'm just not that puritanical.
I didn't even know this had been changed until I read this topic. Finally I can set up fantasy positions. Go Chess.com, keep the good work coming.