Isn't that just because of obscurity? Early adapters tend to be more techy for various reasons. Take the web back in the early 90s. Or usenet before the September that never ended. There of plenty of maillist type groups that are much better for technical stuff. If they, say, bought facebook, wait for the hoards to come in and bring everything down to the lowest common demonstrator. Or the advertisers, that will work will google so they can sell to the unthinking people that share the easiest and most understandable ideas.