Argumentum ad indium 19:52
An argumentum ad indium (Faux Latin: "appeal to the indies"), in logic, is a fallacious argument that concludes a proposition to be false because many or all people like it; it alleges that "If many likes it, it is crap."
This type of argument is known by several names, including appeal to the few, appeal to the self, appeal to the minority, argument by dissent, authority of the few, and bandwagon certainty.

It is also the basis of a number of seemingly paradoxical social phenomena, including communal reinforcement and the bandwagon effect, the spreading of various musical and anti-musical beliefs, and of the Indie proverb "I liked band x before they sold out".