I don’t quite understand why they don’t just let trusted users manually rate search results and feed that through AI to determine ranking penalties similar but not exactly like Kagi.
For the same reason Twitter, Facebook and other anti-social media companies fired there Trust and Safety teams. The parasitic elite can't trust hoomans to not turn on them and promote sites and ideas that they consider dangerous to there rule. This is the reason A.I. has risen in prominence, and is clearly biased when talking about the class war.