I think you may have missed the central points of John Oliver's look at AI. That aside, how would the issue come up? Were an AI Chef blog to pop up, would users ask for it to be indexed? Doubtful. And if the AI aspect weren't advertised, how would EYB know? Hypothetical future ethical questions have a real place and we should be thinking about them as John Oliver pointed out. But there isn't even a hypothetical ethical issue here. EYB is a topic specific (recipes) indexing service. They index sources, on a member demand basis. They act as a publisher only with regards to their news content. If an AI generated cookbook hits the market and 1500 members buy it, should EYB index it? You bet, just like the Oxford English Dictionary added "emoji" when it became a common enough word. The OED neither approves or disapproves of "emoji", it simply documents it based on its prevalence of usage. Should EYB worry if an indexed blog is publishing AI generated recipes? Not their problem. If the issue comes to light, should they report the news? Absolutely! Beyond that, really not their issue as far as I can see it.