@corbet "Of the 5,000 developers who work on the kernel each year, not a single one of them is tasked with documentation"
Do you mean full time? All Oracle Linux kernel devs have an explicit mandate to work on upstream docs. I'm by no means a frequent contributor, but I've submitted a few patches; most of them got rather lukewarm responses at best. I think this actually ties in with what @marcan says: it's draining and not very rewarding when you have to fight for every attempted change.