Stackoverflow is dead because it was this toxic gate keeping community that sat on its laurels and clutched its pearls. Most developers I know are savoring its downfall.
The Zig lead is notably bombastic. And there was the recent Zigbook drama.
Rust is a little older, I can’t recall the specifics but I remember some very toxic discourse back in the day.
And then just from my own two eyes. I’ve maintained an open source project that got a couple hundred stars. Some people get really salty when you don’t merge their pull request, even when you suggest reasonable alternatives to their changes.
It doesn’t matter if it’s a blog post or a direct reply. It could be a lengthy GitHub comment thread. It could be a blog post posted to HN saying “come see the drama inherent in the system” but generally there is a subset of software engineers who never learned social skills.