Starbucks gets great PR when a chain of customers "pays" for each other's coffee. But that's not what's really going on.
When you combine coffee with a poor understanding of economics, two things can happen: You feel smug and self-congratulatory, or you demonize the wrong person. Both happened at the same Starbucks this week, when a chain of 378 people "paying it forward" was supposedly broken by "some cheap-ass" in a white Jeep.