wouldn't it make more sense to tighten the rules and requirements for contribution? how would you even identify AI assistance if the result is immaculate? it seems to me that banning AI is conflating low-quality or low-effort with using AI. I understand those correlate statistically and also causally ... but latter only for specific lazy cohorts. if the AI assisted contribution is of high quality why would you ban it? especially given that you couldn't even identify it or would they still discard it because some comments exhibit Claudisms? tests, linting, more tests, style guide abidance, even more tests and banning contributors who fail to deliver.
I suggest reading the issue comments.
If you can't tell that the contributor used AI, the PR is good - how would they know to forbid it? This rule hopefully stems the tide of low level fly-by contributions. As they said, it's also not set in stone, there will be enough time to change it later if needed.