I actually like the YouTube recommendation system. It manages to pleasantly surprise me pretty often. I don't have significant privacy concerns about it - the stuff I enjoy on YT is quite aligned with my public persona, so to speak. I'm not disclosing anything that I don't already disclose to the outer world.
And furthermore, "bare" YouTube experience (what type of stuff they promote on their front page when it's not customized by my recommendations - basically what I see when I'm not logged in) is truly nauseating to me.