A.k.a. Calling everything you don't agree with a "hipster" or part of "hipster culture."
Why? Because not everything you don't like or disagree with is "hipster." Because the term "hipster" has been used so widely it essentially means nothing (or everything). Because people with specific—or even, niche—tastes aren't all "hipsters." And because we, as a society, can use our words, and come up with better ways to describe things.