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 can’t we opt out of this experiment? If I don’t see a Custom Thumbnail, I will most not click on the video, and now I barely want to watch any new content because I don’t think it’s high quality content.