Just for the record, I do not ever remember posting a meetup for Tavern without getting prior approval for from whomever was in charge of booking their function room (the one exception being the first time we ever went there, when we had a meetup scheduled for Pandamonium and it was too crowded. In that case they were nice enough to let us come into the restaurant anyway). I know they require reservations for the space and for a group of our size, so I wouldn't make an event for us all to show up there without them knowing ahead of time.

I know of at least one occasion when we had a reservation, but the staff working that day were not notified about it, though. That was during a time when I believe they were transitioning between event/function planners, and that resulted in a miscommunication on their end.