It seems like the hipster-as-a-pejorative thing started around the total collapse of the music industry in the mid-2000's and unfortunately was driven by indie scenesters who resented the influx of popularity when say, Modest Mouse had a song appear on say, One Tree Hill. The primary aesthetic religion of the indie scene from punk onward, no matter what the genre or style, was D.I.Y. so suburbanites who went to Hot Topic to grab Iron Maiden t-shirts were profoundly reviled.

This happens in any insular subculture. Do I even need to mention the "geek girl" bullshit?

The problem has quickly become that this revulsion has also played into the jock-centric bullying of anyone who dares to be different--"my football coach won't let me grow my hair long so now let me go punch that faggot with the plastic frames" sort of crap. Any indie community that still exists needs to rid itself of all this baggage for that reason alone.

Whatever utility the word "hipster" had as a pejorative, if any, is gone. Internet killed pop culture and it's dead to stay. The most popular cartoon character now is effing Grumpy Cat. Anyone should consider anyone else using "hipster" as an offhand pejorative to be no greater than a classroom bully, no different than calling someone a dweeb in the 1980s.