Here is an interesting tweet from a Librarian @Bekkhilde
(read the whole thread on the birdsite for more info)
" 
Today in “why are librarians & archivists important”: we had an enquiry about a book that I couldn’t find anywhere (not just in the Library, but even existing 
. So I asked the enquirer where their reference came from. They’d used #ChatGPT to ask about an 18thC ancestor…"