Often times, it is said that post-structuralism and postmodernism followed existentialism. While this is true, I might also wager that hipsterism should have joined the continental conga line. Just as certain existentialists denied that they were existentialists, many hipsters deny that they are hipsters (in addition, reading existential literature gains hipster points).
But unlike the fact that existentialism was once a real theory and approach to be reckoned with, the very notion that the hipster was/is actually a materialized entity has been questioned. Rob Horning, in his article The Death of the Hipster, asks "...are there hipsters, actual hipsters, or just a pervasive fear of hipsters?" Perhaps this says something significant about identity-denial among those perceived as hipsters, an implication that is very much a fact in the social stock of knowledge. In a way, it almost seems like hipsterism is to aesthetics what atheism is to religion. The gods who are so obvious to the majority of the world go unnoticed by the atheists; the hipster fashion trends that are so obvious to the non-hipster majority go unnoticed by the hipster collective. And, like all social groups, both make room for some hypocrisy. As an atheist might be militant (religious) about their purported lack of beliefs, a hipster might deny the commonly perceived nature of their attire.
So, the answer to the question of whether or not hipsters exist is contingent upon who you ask. If they're slurping down a can of PBR while reading the latest issue of the New Left Review, the answer is probably "no." If, however, they're voicing a jeremiad about how pretentious a site like Pitchfork is, the answers is likely "yes."