Chill out - stereotypes are there to parody. Sure, not every geek is a pimple-faced basement dweller, but so what? The stereotype is funny. Just like knowing gay people who are indistinguishable from straight people aside from their romantic/sexual interests does not make the "fabulous" characters less funny.
On a related note, observing a bunch of geeks in one place from a distance, they seem ridiculous. But interacting with them, or even just pondering what it would be like, it turns out I have a lot in common with them. I consider myself a geek, I just do not have the courage and the spending habits to actually join them. And, for the domain of cosplay, I do not have the physique. I admire them for what they have and I lack. I am but a dreamer, but I immensely respect those that have what it takes to live such dreams. "What a bunch of freaks - wish I belonged to them"