This is one of those features that people think they want, and would cost Netflix a ton of money, but would ultimately become filled with spam and would only have a small number of power users. It's a big money pit that does little to retain users and generate revenue. "More social" has been pitched to Spotify countless times and it would likely face a similar fate.
why would building an entire social network cost a ton of money? it’s an entirely different product - dozens of features and content moderation just to get something simple out there…
Yep just like all apples attempts. If iTunes can’t even leverage its install base (ubiquitous back then) to make Ping a success (remember Ping?! I was one of the dozens of active users) around music or Game Center social features around games then I don’t see why it’d be any different for video.