Fair enough. Pedantry accepted. :) I especially agree with the importance of recognizing vague implicit "folk models".
However:
it implies that anyone who doesn't have a store of specialized knowledge is stupid
Most such people are. (Actually, most people are, period.)
Believe you me, most people who ask questions like the one I quote are stupid.
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.