Note to Big Beer: Beware the affronted hipster!

MillerCoors, the joint venture between SABMiller and Molson Coors Brewing, is facing a class-action lawsuit from craft beer enthusiasts for having the audacity to imply that Blue Moon—one of the fastest-growing beer brands in America—was a craft beer.

Given the affection that hipsters have for all things vintage, retro, and old-man chic, I’m a little surprised the lead plaintiff didn’t slap the MillerCoors marketing director with a white riding glove and demand satisfaction with pistols at dawn. Such was the offense taken.