:I think if we can find some context, some reason for why such-and-such writer decided to reference the character (like Kevin Whatshisface for Scream, the whole Jason/Pamela mix-up) then I think we can keep it.  Actual appearances are okay in theory... but what if he's not identified by name?  What about the Simpsons army recruitment video where it kinda looks like Jason and he has a machete and he looks the same as in his other Simpsons appearance with Freddy, but they don't confirm it's him?  I thought even the tiniest jump to a conclusion is OR?  I agree that we shouldn't have any "references" unless it has context, but the criteria for "appearances" still isn't rock solid.