> LLMs definitely write more robust code than most.

I’ve been using Opus 4.6 and GPT-Codex-5.3 daily and I see plenty of hacks and problems all day long.

I think this is missing the point. The code in this product might be robust in the sense that it follows documentation and does things without hacks, but the things it’s doing are a mismatch for what is needed in the situation.

It might be perfectly structured code, but it uses hardcoded shared credentials.

A skilled operator could have directed it to do the right things and implement something secure, but an unskilled operator doesn’t even know how to specify the right requirements.