I found that: 

 Ilan: Are any members of the band Straight Edge, as the tune 'Kill an Addict' might suggest? 

 Sean: No, no one's Straight Edge. You don't have to be Edge to hate a drug addict, you know. Everyone's got their demons. All of us have dealt with the ravages of addiction and we've dealt with the terrors of it personally. 'Kill an Addict' is about a fucking scumbag addict who fucked you over, took your trust and stabbed you in the back. You don't have to be Edge to hate a junkie. At the same time, we totally support Straight Edge, and, even though we're not personally, we believe that everybody should go out and do what they want to do. A great amount of my friends are Straight Edge and we don't separate when it comes to that. We've never been an Edge band, contrary to popular belief (laughter). 

 source: http://www.roadrunnerrecords.co.uk/news/story.aspx?newsitemID=6608