The person who wants to discuss in-depth the characteristics and personality of the wine, how it dances across their tongue, reminding them of a funny thing that happened on the way to Napa. We all know "that guy." Don't be him.

Inappropriate serving temperature, overfilling the glass, and drinking wine fom plastic/styrofoam cups rank right up there... No, I don't think these are any signs of snobbery, but rather of good practices aimed at maximizing the wine drinking experience.