LLM-written content has a certain gestalt to it that’s pretty easy to sniff out once you’ve seen it a few times, just look at Quora and LinkedIn these days.

While I think it’s probably fair for people with English as a second language to use LLMs as a writing assistant (for example), there definitely needs to be some kind of author disclosure statement at the very least. This could be similar to how more papers are now including contribution statements when there are many coauthors.