It's part of the whole psychology of Conspiracy Theory mentality (not to say that actual conspiracies don't happen, but anyway...)

These people in general feel insecure, like they aren't sure what's going on, convinced something's wrong with their lives or life in general; and then they see or hear of an apparent glitch, an image or concept that doesn't ring true for them, and they seize on it and say "See? This is what's been bugging me!" They "realize" they've been fooled and what they've been told by The Man (whom they distrusted anyway) must be a lie. They feel they're "in the know", and try to convince others of their newly 'discovered" "facts".

Not all HB's fall into this description. But it's a recurring theme among them.

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"If this were play'd upon a stage now, I could condemn it as an improbable fiction."
Shakespeare, Twelfth Night
"The Mayan symbol for "book" looks a lot like a triple hamburger, but I've never seen them claiming it as proof the Mayans had Big Macs." - KaiYeves
"Distance doesn’t matter much in space, where if you just start a thing off with the right kind of shove, sooner or later it will get where you want it to go." -Frederik Pohl, Mining the Oort