[drdaeman]

Worse - quite frequently reference material is a mashup of different ideas and stories that we've obtained from multiple sources over time.

Just like in literature - tropes are standalone entities, and they evolve over time. While a trope can be attributed to some book or author, it evolves, gets mixed up, gets deconstructed and may end up with something barely recognizable. Should LLM be forced to always give a nod to Azimov or Čapek when talking about, let's say, Bender from Futurama - if this is not explicitly relevant to the conversation? I highly doubt so - it would make conversations intolerably stuffy. Talking about virtually any topic would end with a footnotes list multiple pages long.

Our (human) "normal" common sense to attribution is to ditch any and all, unless it's relevant for some reason. Because we generally try to stay focused. People or conversation machines attributing recipes to website addresses is a Black Mirror episode material, a corporate wet dream.