I believe I pointed out the very same thing in my original post - that social skills are learned, just like programming skills. But, some people learn some skills more easily than others. In my experience, the predisposition to those skills that we find excellent for FOSS developers tends to be found without the predisposition to more social skills. Of course, brian_d_foy is absolutely correct that there are FOSS devs who are very social. I personally find that those people are usually the older devs with more experience in business. In other words, they have had reason to devote time to learning social skills. They usually weren't that way at 25, when they were most productive in terms of FOSS development.

And, as for what Larry would do, I suspect that he was socially inept at 25-30, too. Most people at the JPL then and now tend to be so.