Queuing instead of engaging in trade or general chat doesn't negate communication though. It delays it sure, but if you don't talk upon being added to the party, then that's a choice. That's on you. Not anyone else also electing to not talk, but you for not breaking the ice either. Once in the instance, any lack of communication from the lead is lame and discouraging, but its not like you can't strike up a conversation whether pertinent to the run or not.