For one, the ‘hipster’ culture, largely defined by Williamsburg in Brooklyn, has replicated itself in neighborhoods in other cities such as the Mission District in San Francisco and Silver Lake in Los Angeles. Though very different in character, the types of people attracted to these places generally share the same tastes in art, fashion and music, bringing their own form of cultural homogenization and conformity to once unique and authentic neighborhoods.
It's so true that it's actually really funny. "Hipsters" move to an area because it's "authentic" and in the process, rob it of that authenticity by installing their own culture. If nothing else, the number of coffee shops in my neighborhood is a testament to that fact.