reliably determining whether content (or an issue) is AI generated remains a challenge, as even human-written text can appear ‘AI-like.’
True (even if this answer sounds like something a chatbot would generate). I have come across a few human slop generators/bots in my life myself. However, making up entire titles of books or papers appears to be a specialty of AI. Humans would not normally go to this trouble, I believe. They would either steal text directly from their sources (without proper attribution) or "quote" existing works without having read them.
This, or their investors (most likely both).