I wonder what the tipping point was where the general attitude towards PG and his essays changed. It's tempting to say AI, but I feel it was more like AirBnB era? When people saw how one of YC's golden goose affected the local communities, the rosy color on our glasses inevitably faded.
Are you sure the attitude changed generally or did it change more specifically here on Hacker News? Perhaps the kinds of people who use Hacker News changed. https://youtu.be/ZIaOBAjvc38 Go to the 2:00 mark of this interview. Sam Altman says “Paul Graham is the most important force in startups of the past few decades” and the whole auditorium starts cheering. So Paul Graham is akin to a god in some places.
I don't think that a change in the composition of HN users is sufficient to explain it. To start with, a lot of the original user base which came over from main Reddit and /r/programming still seems to be active here. And if I had to hazard a guess I'd say that our attitude to pg has indeed shifted.