So, his audience is people who already want to improve their social skills, and therefore have already decided it's a worthy goal to do so. That's why the article doesn't attempt to make a case for why someone would want to improve their social skills -- it is, after all a major topic of the blog.

Yes, this is what I meant when I said I probably wasn't in the target demographic--my social skills are acceptable, but my desire to socialize is fairly low.

Anyway, sorry for the pointless argument, heh.