How do you reduce LLM spam in PR reviews?

Title. I finally got annoyed enough at work with a colleague who posted an 11 point list they clearly hadn't read or reviewed as a comment on my PR that my reply started with 'Thanks Claude...'. No doubt in my mind that I spent far longer on my curt rebuttal than they did on the review. I'd like to hear from folks whose organisation uses LLMs for coding effectively and what kind of best practices they have put in place to avoid these situations.