Essentialy, distiguishes old hipster from current hipster. May also have been some piece of obscure creative work, art, music, fashion that was obscure back in the past and still obscure today where general hipster stuff of today or the past , may have been considered popular in the past and that popularity has diminished to the point of becoming today hipster.
Bob " Have you heard of the arcade fire?"
Joe "Isnt that hipster music?"
Bob "Why yes it is!!!"
Joe "Sorry, I only listen to Cibo Matto. You wouldn't know them, they are from the 80's"
Bob "But, I grew up in the 80's. It sounds original hipster