Nope, all they could do there would be to group people together based on their "search behavior graph". The problem of finding BS sites is in itself a "shirt w

Nope, all they could do there would be to group people together based on their "search behavior graph". The problem of finding BS sites is in itself a "shirt without stripes"-level hard problem. That's why being able to rely on user curation is (was?) so important for Google. People didn't curate the internet at first for money, they did it because they were interested in the subject for which they were curating their web ring.