Even though I own and ride a 71 BSA Lightning and a 72 CB750 I'm glad I am too old to be considered a hipster. 
_____________________________________________________________________________________
Well..having lived through both the "hipster" and "hippy" periods of American history..I was always told the the hipsters were from around the mid to late 1940's (Zoot Suits..Lindy Hop..even Bebop of early 50's) I was born in mid 40's..so was too young to be part of that. The bikes ridden then also were mainly clunky old Harley's and Indians..some Brit bikes that made it over the pond. The Honda's as most of us here know them..probably weren't ever conceptualized then.
However the late 60's and 70's were when the "Nannahans" and Japanese bikes as we know them here came into their own element..I believe. So the "hipster" description seems entirely inappropriate (again a reason for my previous comment about the URL poster not knowing what they're talking about..from experience anyway).
I was somewhat involved with the Hippy movement..consider myself to be a late-blooming hippy of sorts (after 6 years of disgust..disrespect and pain from the Viet Nam War)..but that was "Hippy" not "Hipster" period..I suggest..and at it's height in early to mid 70's..from my experience. Also the heyday of SOHC 4 Honda's BTW.
Some of our younger forum members here may think this is just irrelevant banter. But for those of us who lived through those times..they are important to distinguish..I suggest..because they represent not only an evolution in bike technology..but in social values as well..some better..some not quite so.
Cheers..
Ichi