When info about a chatroom is shown, it contains two numbers. The tooltip says that one of the numbers represent all time users and the other one is for all time messages.
What exactly does the number of all time users mean? Which users are counted in this statistics?
I have noticed in a room which has rather low activity, that there are several users who posted at least one message in that room. (Maybe some or all of them posted exactly one message - I did not check the whole transcript of the room.) But the number shown in the room info is much lower. Is there a minimal number of messages that users must post before they are counted towards this number or some other criteria?