Anyone care to deny that the entire reason young punks blast their music at ear-shattering levels is specifically to antagonize, intimidate, and annoy the members of real society around them?
That their hope is to impose themselves upon others, at least on some level, that is at least part of their motivation...
It's basically a way of throwing down a gauntlet, laying out a challenge to the society around them "do something about it." they get a little buzz off the feeling that they are going around annoying people, probably especially the feeling of annoying white people, and I think that's a big part of the appeal.
The type of people who do this, who attempt to intimidate those around them like this, are VERY OFTEN also the type who would react exactly how he describes, with profanity, threats, etc.
This guy may be a trigger happy scumbag who should rot in jail, but I wouldn't be so fast to jump to that conclusion. I wouldn't be so quick to dismiss his account. It's not that hard to believe.
EDIT:
Oh and btw I acknowledge there are some who do this and are just total posers who would cower when confronted... though, numbers certainly embolden. I also acknowledge there are probably some who do NOT wish to annoy those around them, but I feel this is a small percentage.