Why is it dumber? Because unlike the Cristal or ghost peppers -- fairly isolated incidents, according to my brief, anecdotal research on the Internet -- dozens of people keep trying to eat a damned tablespoon of cinnamon every single day. And they have done so for 11 years. And they film it.
Or rather, they film themselves failing at it, because it's simply not possible to consume a tablespoon of cinnamon without either vomiting it up or inhaling the spice and then violently exhaling it over anything in a five-foot radius.
Yet these "Cinnamon Challenge" videos keep spawning in dark corners of YouTube like endlessly regenerating Donkey Kong barrels, with each willing victim somehow expecting that they'll be the sole Internet denizen to beat the challenge. It's said that the definition of insanity is doing the same thing over and over and expecting different results; if this is true, these videos are truly the Internet's mass manifestation of insanity.
And over at Hair Balls, our own Sean Pendergast (yes, the same one on 1560 The Game) has a brilliant deconstruction of the nadir of the Cinnamon Challenge meme that will ensure you never look at Shemp or tattooed young women the same way again.
UPDATE: It turns out that our very own Nicholas L. Hall did manage to eat an entire tablespoon of cinnamon...with some unexpected results. Learn from his tragic tale.