Creators have had to optimize their chances of being seen on your platform many different ways over the years you've been a service. SEO already means having to make sure you tag a multitude of things each upload and titling your videos "a particular way"...https://twitter.com/TeamYouTube/status/1012185713822126081 …
@TeamYouTube So how is randomly eliminating personalized thumbnails a worthy "experiment"? Your website already informs us that having a face in the picture is ideal, and the stats back it up. Your test hurts views and will make the content you host look more amateur for now :/