I dunno, while (most of the time) I liked chatting with people in MMORPGs when it came to quests or raids it really quickly broke down. It always seemed to end up being a game of "Oh Bob's gonna be here in fifteen minutes we just gotta wait" or "Fred's just fucked up his role and now we're looking at a party wipe".
IMO as a chat room most MMORPG's work fine, or as a casual hang out with friends they're fine too. But when you get to "You need 10+ people to do this dungeon" they really stopped being fun.
I mean "The Thing" wasn't detected for seven years. It's always possible to miss a listening device.