I just noticed I got a second anniversary badge: Anniversary badge on talkgroup
That means talkgroup just turned two years old!
I am too lazy to dig up stats, but I can say that this has been a terrific resource for myself, and is really the primary way I interact online in a social way with a bunch of my friends. And I hope that we invite more people for me to meet and learn from. 
Here is a screenshot of the stats for the site, just to get a sense of how the web uses it:
152.9k!