As a community, tjhsst_alumni is fair-sized but certainly not huge. I think it's a pretty diverse group, with folks who are just starting college through those who graduated and have been working for mumble-mumble years by now. There isn't a huge amount of posting, which isn't necessarily a bad thing. At the risk of sounding too touchy-feely, though, I imagine that as a group we're probably a good source of information for each other - connections, suggestions, all that.
As far as I'm concerned, content here doesn't have to be narrowly TJ-specific; it can cover anything that TJ alums think would be interesting/useful to other TJ alums. I’m interested in what the rest of you want to see here. Do you have questions about college or grad-school choices or finding a program of studies? Do you want to compare notes about getting started on a career path that's related (or perhaps unrelated!) to what you studied? Just looking to find a connection and maybe job leads in a new city? Are you concerned or curious about issues surrounding TJ or Fairfax County schools today, or looking to keep in touch with extracurricular groups you participated in while at TJ? Or (also a valid possibility) are you more interested in the comm as a way to ask the occasional question about "Where is so-and-so?" or "Is there still visitor parking at TJ?"
Seriously, I want to know what you want to get out of the community. Reply, make your own post, send messages on carrier pigeons….