So far I prefer the Hashimoto's solution to this that "AI tooling must be disclosed for contributions": https://news.ycombinator.com/item?id=44976568
I use it like this: If a PR is LLM-generated, you as a maintainer either merge it if it's good or close if it's not. If it's human-written, you may spend some time reviewing the code and iterating on the PR as you used to.
Saves your time without discarding LLM PRs completely.
But what does LLM-generated mean? What if I use CoPilot for completions? Is that considered "AI generated"? What if I grab the code from Claude, and update greater than 50%. Am I now taking ownership of it as my code?
It's like the ship of theseus