Self-Refresher Converting If you're on a video that's still converting, the page automatically refreshed every 5 or 10 seconds.

Nyan cat progress bar I remember when the Nyan cat video got viral, the vid had it's own stylized progress bar whenever you played that certain video
it was pretty epic and I'd love to see that return

Subtitles add subtitles?

Groups, and Sync-Watching Chatroom Groups, a classic, I don't think needs any introduction. The latter I can remember very vaguely from old Youtube when I was younger, but I feel it was very important and led to a sense of community and introduced me to new content on the platform. You could chat with other users while streaming a queue of videos, which is no longer novel but was something I never understood the removal of.

VidLii app for Android and IOS the design should be like the 2010 old youtube app