User blog comment:DanteVin/Regarding Trivia and the "Shout-Out" Trope page/@comment-4023909-20170929232341

I think the "X needs proof" is so the trivia isn't spammed with "trivia" that could be true

at the same time, some trivia is taken out that everyone knows is true only caz there's no "proof". one I can think of is when port says "you wont like yang when she's..... upset" is totally a quote from the hulk (you wont like me when I'm angry), but with angry changed to upset yet it got taken down every time it got put in the trivia part (haven't looked there for some time so it may of changed)