So, you are going to go to a 'hard' punk concert in Philly and you want to dress to impress.
You might want to consider the possibility that the crowd may differ on your choice of regalia.
Dressing up as full-on Nazis (even if one band [Murphy's Law] is led by someone formerly known as Jimmy Gestapo).
Such mistakes can (and did) lead to being harassed and beaten after the concert.
While I cannot condone violence against terminally stupid people, there is a bit of schadenfreude involved in hearing that these people got smacked around.
As one witness said: "There was a man on the second floor wearing a wedding dress," he said. "I don't think he had any problems going out on 2nd Street."
It's all about fashion!