There's always something that an could be better, you know? There's lerally no such thing as a perfect thumb nail. And i have another unconfirmed theory that the vidios instructing you to click a link that leaves you tube, basic u go enter on twitter. I think yu tube loki doesn't like that very much. When they see a vidio sending a bunch of traffic away from you tube, they probably end up suppressing a little bit and keeping the vidios that bounce you around within you tube a little bit higher up....