Exactly! And besides that, new code being consistent with its surrounding code used to be a sign of careful craftsmanship (as opposed to spaghetti-against-the-wall style coding), giving me some confidence that the programmer may have considered at least the most important nasty edge cases. LLMs have rendered that signal mostly useless, of course.

Ehh, in my experience if you are using an LLM in context they are better these days at conforming to the code style around it, especially if you put it in your rules that you wish it to.