That's a good story, but you didn't provide any evidence for it, so an anecdote like "I read his essay about [X] on which I'm an expert and it was wrong" would have more value.
Eh, it's an opinion that I'm not inclined to spend time or effort backing up. I do agree that if I did actually back it up, of course the post would be more valuable. Instead, I'll be lazy and say read the essays and judge for yourself, you might disagree! I'm also of the opinion that if you have even a passing familiarity with any "soft" science (communications, sociology, philosophy, literature) you'll likely find at least one essay that makes you agree with me.
pg has some decent takes on programming and one day decided that he might also have takes on things he knows far less about. These latter takes don't tend to be very good, which is unfortunate because he does actually manage to influence people.