It's a tiny minor annoyance to me sometimes, but I don't usually groupchat (and the most annoying thing I've seen with group chats is if there are other iPhoners it is REALLY WAY TOO DAMN EASY to accidentally FaceTime them all).
The only important functionality that requires an Apple account is the App Store. For that you can create an account with no/limited identifying information and pay for it via iTunes gift cards if necessary. A ban is trivial to circumvent.