Torvalds often crosses that line into outright toxicity. I've written a few kernel patches that I never tried to upstream for that reason.
https://github.com/corollari/linusrants/blob/master/table.md
Someone who doesnt see a problem with this is probably one of those toxic people who dont realize they're toxic you mentioned. Nobody wants to be treated how Torvalds treated people.
Also, coming from an orchestral background, I'm well aware of situations where the leader needs to be gruff. A gentle conductor will never get the idiot violists playing in tune. (A harsh one won't either, but at least the violists will be too scared to make any noise.) That said, it's still unacceptable for a conductor to cross the line from gruff to personal attacks.
> Nobody wants to be treated how Torvalds treated people.
Exactly, nobody wants but so many can't stop until treated.
> Stop this "we can break stuff" crap. Who maintains udev? Regressions are not acceptable. I'm not going to change the kernel because udev broke, f*ck it. Seriously. More projects need to realize that regressions are totally and utterly unacceptable. ... That just encourages those package maintainers to be shit maintainers. ... And stop blaming the kernel for user space breakage!...
Hate 0.832673044602
For common sense.
You may have missed the "retroactively aborted" one.
https://lkml.org/lkml/2012/7/6/495
To be fair, he's got much more self-control now.
Regardless, to a newbie potential kernel contributor, that high level of toxicity can be intimidating, and the professional-programmers-only aspect is non-obvious, so it's easy to see why this would discourage hobbyists/free-time programmers from contributing.
Asahi founder is a community heavy with drama and loved to attack and brigade anyone that didn't immediately bow down and listen to demands of their team and social media entourage. This isn't how the most important OS in the world should be led and Torvalds was right to call out that toxic behaviour.