Is he really 'broadly published and read'? Most people outside of tech have no clue (and no interest) in what PG says.

Yes there is 'nothing wrong' except if you put yourself out there as having good unique thoughts why does it not show that you are lacking confidence to have others (again in this situation maybe in another I'd agree) always review what you are posting on your personal site or blog?

And very importantly he doesn't allow comments (on his blog) the only comments are on HN which he doesn't link to. It's unknown if he even reads the HN comments anymore. Or (last interaction over a year ago) comment on HN anymore (to defend his thoughts or position).

Many reasons for this of course but if you can't handle criticism and think so little of what people on HN says why are you publishing at all? That's your biggest audience isn't it?

(Side note YES HN is can be a brutal crowd for sure. Would be interesting if he ever publishes the changes he makes in the essays or what the people reviewing the essay have to say).