Maybe you'll find this helpful.
Yep. But in 6-8 months of hosting my Combat room, I never saw more then 5 other players come in at one time. In the winter, I'd see a couple of dozen random players pop in for a bit every day. Had some regulars among them but they either subscribed or disappeared after a few weeks. Numbers started declining in May so I reduced hours and it pretty much kill the room, so it's gone now. Having the room up consistently was a major factor in the attendance.
Until I learned, and got into the habit of manually updating Windows once a week, and then turning off updates, it was a pita to keep the room up reliably. Before that I could see as many as 3 "Host connection lost" in a single day.
There was also a pattern. Players would come in, fly right past the shacks I intended to keep them busy while waiting for another player and hit the opposing airfield. If they didn't get a response they left.