The biggest issue currently seems to be lack of critical mass. I know I often check in, see that there are no real players active, and then leave. I imagine others do this too. If people could leave Airmash running in the background and get notified somehow when another player shows up (and is active, not in spectator mode or afk), I bet there would be more activity. A little beep or maybe a desktop notification could do the trick.
The biggest issue currently seems to be lack of critical mass. I know I often check in, see that there are no real players active, and then leave. I imagine others do this too. If people could leave Airmash running in the background and get notified somehow when another player shows up (and is active, not in spectator mode or afk), I bet there would be more activity. A little beep or maybe a desktop notification could do the trick.