The annoying breed of hipsters is the hyper critical mouthy reckless bunch whom only have bikes, which they've unskillfully butchered classics to turn into fixed gear beaters, as a fashion accessory, which they walk most of the time from their level of fitness/nutrition/clothing not allowing them to ride, whom seem to be oblivious or ambivalent to the rules of the road or common decency. Typically there is one of these incredibly annoying hipsters for every ten hipsters, which while following a fad closely, are genuinely mellow and not out to piss people off.
I usually think the the annoying ones, which sear the negative stereotype into our collective thoughts, eventually wind up getting themselves hurt or confronted one way or another and give up cycling entirely.