You assume humans don't ever write sloppy code and Linux Torvalds has never before encountered someone wanting to merge in sloppy code before. If in decades he hasn't gotten comfy with sloppy code written by humans, why would he suddenly be merging in sloppy code written by an AI? He's never been worried about hurting the feelings of a human that's writing sloppy, do you suppose he's going to develop empathy for an LLM that's writing sloppy code?

The people that go all in on vibe coding are people that aren't very good programmers to begin with. They don't really understand how to write code and then suddenly they can make things work quickly. Well sort of work. At least work about as well as they could with their limited skills.

People that are actually good at programming know what good code is. After decades of working with code and knowing what it's supposed to be, you don't suddenly become a vibe coder saying eh, it kind of works, good enough, ship it. Its the people that were never able to write high quality code to begin with that do that. It can do the job of a lazy programmer that has a low standard of quality. For a skilled developer, it can sometimes save on typing on some simple tasks, and a good developer knows when it did something wrong and be all Thanos and say "fine, I'll do it myself".