I just came across this clip when looking at what my main Youtube page recommend I'd watch (first time it has ever suggested something like this) and thought I'd share it.
I'm actually against this whole "recommend things based on what you've watched previously", because I don't want stuff recommended to me, I want to search for things myself. Since I can't turn it off and on at will or do anything about it, the only way to screw with the algorithm is to watch YouTube videos (almost exclusively) while logged out in incognito mode. My main Youtube page still manages to show me somewhat interesting suggestions, probably because I've added stuff to different playlists, which is the main reason that I have an account.
https://www.youtube.com/watch?v=AaRdybVCvdk