And even if the article is useful after all, if it's written badly, in a non-interesting way, people won't read it. That's why Joel is so popular. Because his articles are a joy to read.
Anyway, if I really wanted to know more about how people think, I would study Psychology (or Sociology) and spend more time with them in real life. Some people just aren't meant for this kind of stuff. The last universal man was Leonardo da Vinci.
P.S.: I loved your last sentence.