Comment by codingdave

From what I have seen, AI can detect AI better than humans. Humans are bringing baggage into it and vilifying legit writing techniques just because AI uses them. The whole concept that AI was trained on human writing, therefore uses well-known and proven writing techniques, but that those techniques are not exclusive to AI is utterly lost on some people.

The "dead giveaways" are not writing patterns, it is depth. AI will stay at a surface level when using argumentative writing patterns, whereas humans will add supporting information and connect the dots across sentences and paragraphs. It is the lack of connective language between thoughts and phrases that flag an AI.