Nah, its not the LA thing, i just moved from Richmond VA where they are D-Bags there too. It's the BS elitist attitude that I am referring to. It's the same D-Bag attitude you get from most LBS workers.
And yeah, I did/do the fixie thing too, but c'mon guys it doesn't make you better than anyone just cuz your in the "in" crowd on your bike. And having a "real" track frame doesn't entitle you to be more of a D-Bag either.