Re:Why Did ProtonMail Vanish from Google Search Results? (2016)
by merb on Thursday November 30, 2017 @02:13PM
(#15818595)
> but comparison shopping sites didn't violate any guidelines
most comparsion shopping sites were anoying and did get ranked for everything I wanted to buy. I.e. "buy television" gave you 1. amazon, 2-6. comparsion sites.
If I wanted to compare televisions I would've entered "compare televisions pricing", etc.
Or, Google can get around that by repeatedly tweaking the algorithm on purpose to demote specific types of sites. http://graphics.wsj.com/google-ftc-report/. (long read, but comparison shopping sites didn't violate any guidelines)
There's also the issue of false positives. Machine learning algorithms that demote sites (panda/penguin/vince) certainly have some amount of unintended victims.