Some people do a lot as least. Forrest Addy has a massive library of posts that are still the top results on Google for just about any machining problem imaginable.
Huh. I was actually thinking about him a few days ago. Is he still among the living?
I remember posting on PM about 15 years ago asking how to fix a mistake I kept making and he gently smacked me on the head and basically said just learn to do it right in the first place. Which was really the only good answer!
A small curated "best of" list of links wouldn't go unappreciated :)
It takes a rare multi-talented person to do this though. First you have to attain mastery of the craft itself, then you have to master (or at least be competent in) the art of communicating it to others.
Some mechanics are just good mechanics, and that's okay.