These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Memetic Mutation: The first of the two famous spoilers is almost a Stock Parody now, with a nervous individual tightening the grip on their blanket and whispering out any number of variations: "I see white people" "I see dumb people" etc. It even named a trope.