Philosopher J.P. Messina (Purdue) kindly gave permission to share what he posted on FB recently, and it seems to me his policy is a good one:

I have refereed two papers this week that were pretty clearly written or heavily revised by LLMs. New policy: unless editors have an AI-use policy which requires AI-use disclosure and checks for obvious signs of non-disclosed use, and unless author’s disclosure is shared with reviewers, I will not be accepting their referee requests. For context, in each of the last three years, I’ve refereed 20-30 papers for a variety of journals. But if your journal can’t be bothered with doing basic work to check for academic integrity, I can’t be bothered with ensuring that work submitted to it meets whatever ‘standards’ remain. And for “authors”: except in rare cases, if you don’t have time to write it, I don’t have to time to read it.

What do readers (and journal editors) think? Are there other approaches that referees should consider?