I don't know... I think it is all a matter of perception... He seems to be making the point that skaters are non-judgmental whereas highly technical geeky people are. In my experience you could find just the opposite, just because you have some cool friends that are one way doesn't mean that everyone else is like them.

I've met several highly technical geeky people that encourage learning, and are pretty non-judgmental. In fact I would even say, that the more technical and geeky you get, the more you want other people to understand it. The problem are the people in between, that aren't super technical and so have to belittle others to make themselves seem better than they are.

Also technical geeks do get frustrated explaining technical things to non-technical people who aren't willing to put forth their own effort. The skateboarders he mentioned even wanted him to put forth the effort, or get lost... how is that any different than the technical community?