Sharing answers to top q's we’re seeing about the thumbnail experiment: – Custom thumbs aren't going away – 99.7% still see the creator's custom thumbnail – A lot of creators use auto-generated thumbnails, this test helps improve them for those using them: https://goo.gl/A7oDmr
why not add tools to make those auto thumbnails a bit better like possibility to add fun icons and descriptions? it would also be cool that you can choose the timestamp of when the thumbnail is created from the video..