This is shouting at the clouds I'm afraid (I don't mean this in a dismissive way). I understand the reasoning, but it's frankly none of your business how I write my code or my commits, unless I choose to share that with you. You also have a right to deny my PRs in your own project of course, and you don't even have to tell me why! I think on github at least you can even ban me from submitting PRs.

While I agree that it would be nice to filter out low effort PRs, I just don't see how you could possibly police it without infringing on freedoms. If you made it mandatory for frontier models, people would find a way around it, or simply write commits themselves, or use open weight models from China, etc.