I feel old on some boards and young on others--ARGGGHH!!!
I know the feeling. I've generally cut out all boards in which I feel like the oldest person around - because at 19 there aren't many, and the chances of intelligent conversation appearing on boards with people that age are few and far between.
Or maybe I'm not looking hard enough....or maybe they ARE having intelligent conversation, but being dumb as a rock it's all going over my head?
If you want to venture away from being known as a wrestling board, you need to open up some more slash sites (slash-entertainment, slash-sports, slash-tech, etc.) and get people to post reviews and columns like they did on slash-wrestling.