I have a simple rule: whenever I receive an issue or PR from an unfamiliar account, I skim the text and/or code and post 1-2 quick questions. If the submitter responds intelligently, then the issue warrants a more in-depth investigation. If not, the submitter clearly doesn't think that the issue is worth following up on, so it's not worth my time, either. The more code a PR contains, the more thorough knowledge of it…
That's a reasonable first step, but a human can just as well feed your questions to the LLM, and post the responses. So you really have to be vigilant throughout your interactions with the author, or, if the PR is unsalvagable, save yourself some time and effort and reject it from the start. > I'd rather talk with an intelligent LLM There's no such thing.
If the noise increases to an uncomfortable level, of course, I may have to change my strategies. The point is that humans produce noise, too, sometimes even more than LLMs do.