I mentioned it in another comment elsewhere, and there’s another thread here on broader community features with a mention of a friends list, but it’s something I’d really like to have enough that I think it warrants it’s own submission.
I enjoy watching things with friends. I don’t like actually pinging all of my friends to see who wants to watch something, though. Social anxiety is a thing, and I just worry about being a nuisance.
So, the ability to host a viewing party (publicly or privately), and for friends to get notifications through their browser or apps (if they opt in) to let them know I’ve got a room open, that they’re pre-approved to join at any time, would be amazing.