IMO if the TS made a mistake then just correct him/her. Don't have to add sarcastic comments. To err is human and I don't think you have to be Mozard to enjoy good music. So what if he/she is not a WoW player?

Blizz MIGHT make an Australasian server in the future, who knows? In that case, I would still prefer playing on US servers. I don't want it to be another RO experience (in terms of people's ettiquette) all over again. I'd rather put up with lag + more expensive monthly fee any time.