User blog comment:DocTanner/Discussing Trivia Guidelines/@comment-5035765-20131012191615/@comment-5331854-20131014092921

It needs to be a wording that makes it obvious that this is indisputable when the reference is obvious even to people that are not fans of the referenced media.

For example, even if you don't like Mario, you'd still most probably know about his shroom-addiction, the fire flower, maybe the starman. And likely also know stuff about Luigi, Peach, Toad and Bowser. Characters like Toadsworth and Bowser's 8 children would be pushing it, on the other hand.

Indisputable references would be that kind of "blatantly obvious even for the mundane". Everyone would agree that King Rammus is a reference to Bowser.

This would require that people seeing a reference must step back and see the big picture: Would people who aren't familiar with the media still see the reference within 6 seconds? If not, then it's disputable and they should say "is similar to", which is more safe-ish than "references".