THe problem with LLMs is that a single token (or even a single book) isn't really worth that much. It's not like human writing, where we'll pay far more for "Harry Potter" and "The Art of Computer Programming" than some romance trash with three reads on Kindle.
I wonder about this a lot when I ask LLMs niche technical questions. Often there is only one canonical source of truth. Surely it's somehow internally prioritising the official documentation? Or is it querying the documentation in the background and inserting it into the context window?
But longer form tutorials or even books with background might suffer more. I wonder how big the market of nice books on IT topics will be in the future. A wiki is probably in the worst place. It will not be changed with the MR like man pages could be and you do not get the same reward compared to publishing a book.
I think there will be differences based on how centralized the repository of knowledge is. Even if textbooks and wikis largely die out, I imagine individuals such as myself will continue to keep brief topic specific "cookbook" style collections for purely personal benefit. There's no reason to be averse to publishing such things to github or the like and LLMs are fantastic at indexing and integrating disparate data sources.
Historically sorting through 10k different personal diaries for relevant entries would have been prohibitive but it seems to me that is no longer the case.