Flawless, completely unnecessary abstraction is a better tell of LLM code than "comment clearly responding to a part of a prompt that I cannot see".

More like 'not boilerplate-y enough'

Ehh, AI makes plenty mistakes but they have a different vibe to it.

In my mind an AI would do something the most popular way even when that's not appropriate.

A human might do things in an unpopular way even when that's not appropriate.