I may be an average corporate backend dev, but if anyone I work with would react in this way after any kind of mistake I did, I would report the situation / leave immediately. Honest feedback is surely key to keep quality, innovation, and skills high - the thread has indeed a few lines of honest feedback (don't break user-space, wrong error) and the rest are just insults. I am pretty sure it goes against the Code of…
I've run a lot of dev teams, and I see two side to this.
On the one side, the worse thing you can do is build an environment where folks are scared to raise new ideas, or think of new solutions, for fear of being publicly humiliated. At best, you will get teams that do very average work. At worse, you'll loose all your good people.
On the other side, I've had devs who thought they were god's gift for code, and made everyone's life around them, a misery. e.g. one guy spent months failing to implement an API with the front end he was writing, but despite that, he'd comment on PR's "This code is shit and needs to be rewritten."
Folks like that need to be part of, what we call in the UK, a frank and open conversation, which I had one to one. This particular dev refused to back down, and left without working his notice. Going somewhere where they would, in his view, thank him for his feedback. Good luck with that. They guy that replaced him had the API working inside of a week.
tbf, the API was terrible, but that's a whole other story involving IBM and SaleForce...