I think I’ve found the one area where LLMs really excel: business books / self help literature. The real life examples in that genre are pretty awful and dragged out as it is, so you can’t really make it much worse, now can you? The information density is kept low to fluff up the page count, and oh boy, are LLMs good at that. So, if you want to become a self help guru, but can’t be bothered to write your own book about magical hotels, marriage advice, productivity tips and communication, LLMs can take care of that for you. Copilot has turned out to work well for projects like that.
If you raise the bar, you’re going to have to read and edit the text manually. You also need to keep track of what has already been mentioned elsewhere and avoid repeating them again, depending on the genre. In business books though, that’s not a problem at all.
BTW, if you wonder about the downvotes, it’s because Asklemmy@lemmy.world isn’t a safe space for AI related discussions. Consider posting somewhere else.