The same can be said of the opposite end of the geek cultural spectrum, though -- the stereotypical Mountain Dew & video games contingent.

I interviewed a startup where one of the co-founders openly mocked me for wearing a tie; when he asked what my interests were (sports and music, amongst other things), I got criticized for not liking "Starcraft and normal programmer stuff."

The issue isn't one specific subset of tech industry culture; it's a result of the startup scene shifting HR roles to technical people who often don't have the soft skills necessary to deal with such tasks effectively.