Just like how you have Hot Topic for your alternatives and Hollister for your preps, you have Urban Outfitters for your hipsters.
A lot of people tend to assume any one who shops at a commercially popular store is
automatically a poser of said label to which the store's primary target is. That's not
necessarily true. It's OK to shop there because you like the clothes, even if they can be overpriced. However, a lot of people who shop there do tend to be "hipsters", and as a "hipster" store it's no longer hipster, because with the hipster movement being mainstream in itself something can only be hipster until it's called hipster.
Personally, I wouldn't shop there simply because it's too commercial, so they think they can jack up the prices of things to more than it's worth. Whether
or not you shop there is ultimately up to you, but for the sake of society, if you can help it don't shop there to be hipster. Please, we already have enough "hipsters" in this world.
"hipster":
I got this shirt is from Urban Outfitters because that shop it's so anti-mainstream!
Someone-not-trying-to-be-anything-or-prove-anything:
I got this shirt from Urban Outfitters because I just
like this shirt, and perhaps I like some of the stuff Urban Outfitters sells regardless who it targets its products to.