We see dozens of articles like this reach the front page predicting Groupon's doom, always citing the same dissatisfied coffee shop, always attacking imaginary business models. I'd like to see someone refute Groupon's value as an advertising tool, or even compare it to existing alternatives.
On top of that, a class of hacker news user exists who spells "Groupon" groupOn. It seemed liken impossibly childish insult, to mangle something's name, so I assumed it was an accident or maybe that's how Groupon used to be spelled when it was a startup. Well I looked it up, and no.