I wouldn't have said "good". They are very relevant to what you watched recently. But watch one random shit once and your side bar is now defaced with thumbnails you can't throw away. I really wish I could opt out altogether from this one.
You can! Go to youtube, then History, and there should be an option in there to have it stop tracking your history. I'm sure they still track it, but at least they don't give me recommendations anymore. This was especially annoying for me when I would step outside of my normal youtube zone by clicking on some youtube video from reddit or some such, and for the next week I'd have all sorts of crazy weird and at times NSFW recommendations from it.
