LLM prose is unfocused and extremely verbose. It wastes the readers time and is insulting. If you don't care enough about something to write about it, I certainly can't be expected to care enough to read it.

LLMs don't want anything. Thus, they have no taste. It's not merely a style question, it wastes readers time trying to find the point the author was trying to make; a fruitless search, as the LLM wasn't trying to make a point, it was completing one probable sentence after another.