I'm starting to think that the real nerd subculture is dead anyway. Or rather, not dead so much as buried very deeply on the internet, and less deeply in real life. Time was, you popped onto a dedicated server in an online game, and it had the same kind of friendly, helpful atmosphere as a tabletop game store. That time is long, long gone. Modern gamer culture is nothing like the nerd culture of old at all -- when was the last time you saw someone giving a reference to, say, Dune that went beyond "hey Dune, I heard that was supposed to be a classic, don't I look smart for referencing it?" Or the Foundation trilogy, or the Lensman series[footnote]which is actually the one thing on this list that I haven't read, if anyone is keeping score. And I've got a copy of the first book sitting on my shelf, waiting for me to get the chance.[/footnote], or any number of other classic sci fi stories. When was the last time you traded stories of that one crazy munchkin everyone has in their D&D group? When was the last time you saw someone gushing about Blade Runner, or even acknowledging that Forbidden Planet existed? Where is the wonder at the possibilities of the future, or at the magic of a mythological past? What happened to nerds? And why did the whole culture go from a collection of people who would give each other the shirts off their own backs if necesary -- if for no other reason than that they'd all known what it feels to be mistreated in the past -- to a collection of asshats shouting obscenities at one another?
The real nerd culture still lives, but not on any dedicated gaming site I'm aware of. You'll see glimpses of it on the XKCD forums, and on other places frequented by engineers and nerds of an older generation (forums dedicated to home theater often give glimpses of the old days, for example, and the good ones are frequented by both groups), but not on gaming sites. But really, if you want to see the true nerd culture, you're going to have to go out in the real world and find it. Your first stop should be your friendly neighborhood game shop, and I don't mean the kind that sells videogames. I you don't have one of those, check the comic shop. Look around, there will be one or the other /somewhere/ in the vicinity[footnote]or if you want a shortcut just to get a glimpse of what it was like, do a google groups search on some nerdy topic and limit it to, say, 1981-1995. You'll find plenty of examples of what real nerd culture is all about.[/footnote].