Contributor Responsibility and Review Cost in the Age of Code Generation

I think "unenforceable" is total nonsense. Yes, determining whether something was generated by an LLM with 100% accuracy is impossible. So is determining whether somebody has the copyright to code they are submitting. That doesn't mean it's impossible or a bad idea to have a policy about use of LLMs. Or copyright laws. (I think a lot of copyright laws are bad, but that's beside the point)