It just boils down to bothering to have GMs at all. A GM should be monitoring chats, banning bots and gold sellers, and helping players with technical issues when they have time. Yes it would be silly to hire a "chat monitor," but for a healthy game environment hiring a GM is great idea. The only MMO I can remember playing that bothered to have GMs is FFXIV. And hey, that game is doing great, and the player base is very happy. (I don't play it, and I'm sure there are some that get mad if it's even mentioned, but that's not the point) I would not expect EA/Bioware or Activision/Blizzard to have GMs (At least not any more) Once they got the sub, all bets are off. That seems to be the way with most MMOs these days.
As for "Freedom of Speech." It's part of the service agreement to play this game. Same as if when you work for a company. There are things that just have no place being said, anywhere. Grow up (Not directed at who I'm quoting here)