Realistically, Less Wrong is most concerned about epistemic rationality: the idea that having an accurate map of the territory is very important to actually reaching your instrumental goals. If you imagine for a second a world where epistemic rationality isn't that important, you don't really need a site like Less Wrong. There's nods to "instrumental rationality", but those are in the context of epistemic rationality getting you most of the way and being the base you work off of, otherwise there's no reason to be on Less Wrong instead of a specific site dealing with the sub area.
Also, lots of "building relationships with powerful people" is zero sum at best, since it resembles influence peddling more than gains from informal trade.
r/Fitness does a weekly "Moronic Monday", a judgment-free thread where people can ask questions that they would ordinarily feel embarrassed for not knowing the answer to. I thought this seemed like a useful thing to have here - after all, the concepts discussed on LessWrong are probably at least a little harder to grasp than those of weightlifting. Plus, I have a few stupid questions of my own, so it doesn't seem unreasonable that other people might as well.