It would be nice if Amazon had an option to turn off star ratings. Currently it's impossible to locate any book without spotting its corresponding star rating. When you click on a book's link, its star rating sits below the author's name and above the price. It's repeated again in the "Product Details" area, and once again in the "Customer Reviews" area.
YouTube has done away with star ratings, and I didn't notice their absence until I deliberately looked for them just now. At the same time, YouTube doesn't show you a video's Like/Dislike ratio until you actually click on the video's link. And even then, you need to scroll down a few notches to see the ratio, so you're allowed to watch the video with a comparatively clear mind.