The only legit changes to be upset about are the commercials and the limitations on favorites. And the commercials are there because, believe it or not, KZbin needs to make money to stay up and running. The star rating system was already pretty much the like/dislike system because people almost always rated either 5 or 1. The overall score was practically an averaging of 5s and 1s. (i.e. liking or disliking.) Everything else is just people complaining about trivial things.