This poses a couple of hard problems. We’ll look for feedback on these points in comments before declining.

1) IPs change. A lot. A broadcaster might lose a significant portion of their audience, and viewers might get confused if there are a lot of banned IPs (such as universities).

2) System load. Looking up a enormous list of IPs to see who is allowed to watch on every single video play is an enormous system load I’m not sure we’re willing to take on.

3) Support costs. “Why can’t I watch X/Y/Z, I don’t know who they are” would come up. Our support isn’t free, and we’d like to be able to focus on issues like passwords, bugs, etc.