Tech-Forums does have a lot of teenagers. myself included (I'm 16)
I'll have to admit, when I first joined, my posts were not extremely good. now that I've been here for over 2 years, if I look back on some of my first posts, I always say to myself "wow, was I really like that?"
although I'd have to say that being on TF has given me a whole lot, which I wouldn't have got anywhere else.
when I first joined, the contrast between me and a lot of the users was really high. most of the users were at least in their 20's or 30's, with some teenagers, and it was a lot more about solving problems. now, it seems to be a whole lot of teenagers asking "what video card/CPU/whatever should I buy?" (which is probabbly why the hardware section got split up)
thanks to Emily, a lot of users now have searches in their sig. but unfortunately, not many people use them.
I'll definately be staying at TF. when TF2 gets up, I'll probabbly be there more often than here though.