This n-gate author is just another person in tech who things "this is wrong" is more valuable than "this is more correct." In the same vein as "shit HN says", it's just taking cheap shots. It's the tech equivalent of watching Dr. Phil and going, "Gosh at least that's not my life." It's the kind of mentality that claps when Linus Torvalds cusses someone out for reminding him he made his own bed with SHA1.
I did stop contributing here for years was the utter frustration at how casual and horrifying things uttered were protected as "discourse" but any counter to them was "being uncivil." But ultimately I stay because I genuinely like to help people with tech and like to tell people who bring Reddit in here to go back to that crappy smugfest (or perhaps head to less orange pastures).
The tone of the annotations, while styled as snark, have a playfulness that neutralises any potential malice.
If I noticed that I was seeing bitterness in everything, I might stop criticising for a while and start asking questions of myself.