Youth or how cheap a car is has little to nothing to do with the maturity of a community.
I was a member on a G5 forum (and a Cobalt one) for a long time. Those are cars that attract young kids -- and yet the community was fine. Hell, NASIOC is great too.
I don't mind people being passionate about their cars, that is okay.
It does annoy me when they are ignorant and try to spread that to others. I also can't stand this: