Especially with containers around you might very well hit the case of running new kernel but older version of PostgreSQL with no code mitigation for the problem
I get that folks love a good Linus rant. But as someone who's been at the end of that style of "feedback", nothing can be more humiliating or demotivating. Certainly there are contributors that are making "rookie mistakes". There are folks that aren't willing to ingest the entire context of what was tried back in 2.0.36, 2.2, 2.4... etc. And perhaps it's wise to simply stay away until you're completely certain you've got the chops to contribute. More than half the folks that enjoy that sort of abuse don't have those chops.
I can defend someone who is unwilling to yield on quality. Afterall, this truly is his baby. Issuing scathing rebukes to well-intentioned contributors is like slapping my kid when he brings me the wrong type of screwdriver.
I don't think a Linus rant ever hit anyone that was a rookie, they are always AFAIK against people "who should know better". Veteran developers, with multiple commits merged.
This is a system used and relied upon by billions of people around the world. Your intentions, while good, are not material to the problem. Put another way we have an endless supply of people with "good intentions" but we don't enjoy the same largess of people with "good skills."
https://lwn.net/Articles/343828/ describes Alan Cox trying to fix the TTY layer, being trashed by Linus, and removing himself from the maintainer page.
It also didn't just happen out of the blue. It's also true that Alan had already been working on the kernel for 15 years, was an employee of RedHat at the time, and his Wife's health was starting to fail.
If you follow the thread it goes back and forth across quite a few messages with frustration building on both sides with Alan ultimately deciding to step away from a single (and very hairy) subsystem.
I can defend someone who is unwilling to yield on quality. Afterall, this truly is his baby. Issuing scathing rebukes to well-intentioned contributors is like slapping my kid when he brings me the wrong type of screwdriver.