You've got your everyday sci-fi dorks. You've got your math and science dorks, which sometimes grow up, go to grad school, and become more highly-advanced methods dorks. You've also got your gaming dorks. "Wait - what are these 'gaming dorks' of which you speak?" If you'd like to explore dorky subcultures outside your own, please visit king gaming-dork's blog.
"What are his credentials?" Excellent question - not only is he willing to use "aggro" as a verb AND a noun, but he admitted on a very public website that he spent two nights waiting for a griffyn to spawn. No idea what that means? Check out his intro-to-the-terminology posts.