Steady stream of new people showing up tells me at least there is a heavy influx of users and have been for a long time. Edit: you might also be onto something

Steady stream of new people showing up tells me at least there is a heavy influx of users and have been for a long time. Edit: you might also be onto something with the "specific social circles" part of the comment. It is maybe like Google+: from the outside it looked like a ghost town, while inside it was beautiful.