Similarly (though also exhibiting teenage American language taking over the world symptoms) is Netflix's new (or new-ish, I just noticed it yesterday as a fairly frequent user) 'everone is watching' category. I have absolutely zero interest in that, it's literally repulsive, trivially incorrect, and just plain stupid even apart from the language - who cares what others have chosen to watch, how does it compare to what I've given thumbs up/down?
I join you in cringing at the word choice but I appreciate ways to find things that aren't similar to stuff I already like.
With a lot of recommendation systems, you watch and give the thumbs up to one piece of Danish art house cinema and forevermore that's all it will give you.
Plus it's more fun to watch something if there's a good chance you can find someone to talk about it.
Fair enough, but honestly in my experience Netflix is a long way off over-fitting to thumbs. I never watch cartoons or 'kids' category stuff, how hard can it be.
Looking at the Youtube frontpage while logged in stares deep into your soul
(+ Youtube tries desperately to occasionally get you to also watch some open mouthed shock faced idiot in a thumbnail with $$$$$$$$$$$ in the title brought to you by the prank content creator house of the day).
I don't have an account, looking at the YouTube frontpage (which is presumably designed to appeal to some notional average user) is a seriously depressing picture of people/society.