SpiritusZabaione said:
Cooking videos and wildlife infrared camera clips that look normal but then those uncanny indicators start to show and make the sirens in my head go full blast!

most often, with the ones that tend to go viral, the biggest tell is just that the premise dosn't make sense. like with those pet/animal videos, the subjects don't act like any animal would act, they act closer to cartoon characters, or like puppets following a script.

remember that these videos are often prompted by the same types that would be writing "then everyone clapped"-type autobiographical fanfiction on Tumblr/Reddit over the past dozen or so years, and the stuff they're making now is likely to have the same level of narrative coherence and understanding of the world.