Smosh explain thing Smosh was a 2005 big youtuber untill 2026 to make our life becoming goat!

Vidlii playbuttons add vidlii playbuttons. a sliver one for 100 subs and a gold one for 1000 subs and make them use the 2014 style.

Annotations because it can change something in a video you forgot to edit in like if you spelled a word wrong you can add a annotation over it

oldschool youtube player make a custom player that looks more like the youtube player from 2006-2008 so its squared and everything.

Add photo comments, Downloading Vids and a separate layout for mobile Adding Photo Comments: It would be funny for memes
Downloading Vids: It would be nice if it was native to the site instead of having to do it through a third party.
Separate Layout For Mobile: Would be nice if you could change to a mobile UI aka made for phone users and still computer layouts on your phone and vice versa (albeit it would be one layout for phones) too if you want. It would be separate none would affect the other and it would be two different channel layouts you would swap between on their page (it would be automatically computer or mobile depending on what your viewing on also only one if they only made one) finally you would be able to make both on computer. Message me if you decided to implement on of them from my comment.