I think the direct action of a person taking their idea and thoughts and going through it many times (making changes / updates / fixes) fits better than eating something. however, I do think you still some form of validation data to ensure these are good changes.

However, I do get the spirit of the article, that as more information generated online is done by LLms, the validity and use of the output decreases

Not sure why you’re downvoted, I think a comparison with prions seems apt and interesting, and bad protein copies that can replicate is essentially an information process. GAN research in recent years showing how you can sabotage a working dog/cat classifier with a one pixel change feels similar to how the tiniest parts of large systems can sometimes undermine the whole completely, albeit with low probability. And finally, since models will bootstrap models that bootstrap models, inevitably there are already subtle issues out there in the wild that may have an incubation period of many years before the downstream effects are completely clear.