Poking at this with a dull stick and no rigor (so take this for its low worth), I roughly define a hipster as "the cool urban folk who get into the next cool thing to win cred with the other cool urban folk." In there lies the reason that I am not a hipster. Hipsterism is not defined by what you are into or what you like, it's defined by the reward system.
Take me. I wear a beard because I get ingrown hairs. I get no social cred out of this. I play the banjo because I like the banjo. I get no social cred out of it. I wear what I wear because I am practical. I get no social cred out of it.
I like to think of hipsters as cultural tourists. They're only there to take their selfies until their gang has moved on, and then so will they, leaving their trash behind. The cultural natives will keep on doing what they're doing regardless.