I, for one, would gladly ban everything that contains a title with "What is... and how to..." and other slop-like titles.
This SEO spam problem has been present for a few years before AI, but AI multiplied it by orders of magnitude to a point that's unmanageable for all search engines. When I signed up for Kagi, the results were clearly superior to Google's, but I can't notice the difference now, and for some specific topics, I started bouncing back to Google.
Maybe a config page that allows the user to create granular rules for all searches would help. This way, technically inclined people could customize their own experience. I can currently block some sites, but it lasts only for the current session. I need to block again and again every time I search. I want to permanently block a site from results, just like social media allows blocking people.