I’ve said before that the most precious part of the Web are the pre-Facebook forums run by enthusiasts of specific domains (say, owners of a model of motorbike). There’ll be knowledge there from crusty old riders that means the difference between success and failure at doing what you want to do.
It’s exactly this kind of specific knowledge, like knowing the right steps and way to adjust the valve clearances on a bike, that is threatened by AI content mills, because an LLM doesn’t know if it’s 0.15mm or 15mm, and doesn’t care