Not because the suggestions are amazingly good - sometimes they're ok - but because when they lead to some crap-infested site I can click to not see that site any more. That ability to cull keeps the suggestions workable for me.
I genuinely think the Google would benefit hugely by making this a possibility with their search engine. With the coming flood of chatgpt-generated shit sites, they have so much to gain by enabling human curation, even if page impressions take a hit.
Ffs Google, provide your users with a way to blacklist the more abominable parts of the internet and you'll engender serious customer loyalty and stickiness.