Comment by dandellion

I was reviewing some code done by a junior hire at my company last week, and it certainly didn't look like he was cramming 25 years into 2. It looked like he had no understanding of anything he had generated, because it was garbage. Meanwhile this week I've just reviewed the largest single PR I've ever seen, from a senior dev who disclosed it was mostly generated and cleaned up by him, and the code was perfectly fine and it was a breeze to review.

LLMs are a great tool, but more often than not it does show if the person using them knows what they're doing or not pretty clearly. Especially if it's anything larger than a trivial small change.