On the other hand, a LLM that got rid of "hallucinations" is basically just a thing that copy-paste at that point. The interesting properties from LLMs comes from the fact that it can kind of make things up but still make them believable.
This is the definition of a bullshitter, by the way.
Without that we can run into a situation where a fictional story on the radio convinces the public that we are under alien attack in what could be called a war of the worlds.
I would say that it's the responsibility of the reader to read any content in the context of which it's published. For example, to expect a radio play to be fictional as the vast majority of listeners did.
What's missing is sanity-checking the sources and the output.