Being a white suburban, there was a time that I considered myself "anarchist," even though I was basically just an angsty teen. Growing up, and learning how to learn, I soon discovered that anarchy has little to do with anger, and more to do with the idea of a lack of government. The first problem that I can see with this band's entire concept is that they're falsely labeling themselves. If I had to call them anything, I'd just call them plain old shock rock. My guess would be that these people just try to write the most absurd lyrics about the most offensive subjects to inspire people to do what you just did, ie. post about them. In this day and age, if you think about something, (and I mean anything,) there's most likely a website about it with at least 10 followers. This band is just another example of that mentality. The lightning-fast exchange of ideas that goes on guarantees that anything and everything can be shared. I'd play odds that this band is nothing new, it just has more exposure today than in the past, when scathing song topics were mainly kept to the underground, and the only way to hear it was to buy a cassette tape of it at a shitty show. Shit, I know bands have been talking about this kind of stuff. Remember Anal Cunt? They had songs like, "I Became A Rape Counselor Just So I Could Tell Women That They Deserved It."
In short, this band sucks regardless of their subject matter, and anyone who calls this "anarchist" needs to go back to 10th grade Social Studies.
I completely agree with this.
I just feel the need to explain myself. I'm not an anarchist because I want to be more "edgy, or that I'm an angsty teen. I understand anarchism, I've done tons of research on it. I know it's not about being angry and destroying everything in sight. Anarchy means no rulers, not no rules. /offtopic
But this returns me to what I pressed before: Are they explicitly advocating rape and murder? I feel that in order for justice to be served, they must first cross an mutually understood 'line'. Without a standard of measurement, so to speak, we'll be in a situation much similar to a witch hunt, devolving into he-said-she-said, what-they-were-really-saying-was garbage.
Furthermore violence begets violence, as has been proven time and again throughout not only American history but the history of the world. Advocating violence against those who advocate violence creates a never-ending loop of punishment. Perhaps advocating justice be done unto those who advocate violence is a more noble and reasonable effort?
EDIT: Holk is also quite right, and provides another angle of discussion to this debate that should certainly be appreciated.

I understand what you mean. And you're right, blow for blow never
usually settles the score. As Nietsczhe put it, "Be careful when fighting monsters, lest you become one."
edit: Hang onnnnn
I dunno, maybe I'm reading it out of context, but it's coming off as you attempting to proclaim your moral is "more just" than mine.
Morality is subjective, justice is defined by your morality. I think it's well and just to choke those assholes to death. You're motivated by morality.
Your personal SUBJECTIVE morality. It is not more noble to shame someone than to kill them. It's a varying reaction to moral outrage based on subjective opinions formulated by our perception of reality.