Our own, obviously. And as the moderator wrote before locking the above thread, obviously we can’t link “if it violates a copyright”.
I’m probably just missing something, but I have no idea how to definitively tell if something violates a copyright. For example, how do i know if YouTube performer X got copyright to post a specific vid? I’m not a copyright lawyer/investigator!
I asked in the above thread how S. determines whether their YouTube-linking rules had been violated, but of course didn’t get a response beyond the nebulous “if it violates a copyright” (how do we know?).
As far as I can tell, right now it’s just a “I think I know it when I see it” kind of situation. Maybe the mod wants to clarify here instead, or if someone else has insight?