SEO-based business models used blogspam before. It's the same SEO garbage that gets it into search results, but the content is now AI slop instead of contracted labour at pennies/word.
And search is garbage, now, because of enshittification; Google gets more money when you give up and couch the sponsored links, and re-query or load more pages of results to load more ads. So there's no incentive for them to filter the spam.