Here is Coyne's diss in its entirety, because it really is great stuff:
I'm a fan of them [The Arcade Fire] on one level, but on another level I get really tired of their pompousness ... We've played some shows with them and they really treat people like shit. Whenever I've been around them, I've found that they not only treated their crew like shit, they treated the audience like shit. They treated everybody in their vicinity like shit. I thought, 'Who do they think they are?' I don't know why people put up with it. I wouldn't put up with it. I don't care if it's Arcade Fire or Brian Eno. If either of them walked into a room and treated people like shit I'd be like, 'Fuck you, get outta here.'Emphasis added, but I think it's obvious to anyone who reads these comments that Coyne is talking about social equality. His sense from being around them is that the members of The Arcade Fire place themselves above the lowly crew members, audience members, etc. That's why the Edge and Justin Timberlake are relevant examples: They are "big stars" who Coyne has seen treating potential social inferiors -- crew, people in the general vicinity -- as equals. That's the point.
... People treat Arcade Fire like they're the greatest thing ever and they get away with it. Those sort of opinions change my view of their music. They have good tunes, but they're pricks, so fuck 'em. Who does Arcade Fire think they are? I've been around groups. I've been around the Edge from U2 and he's the fucking sweetest guy ever. I was around Justin Timberlake when he was young and he was just a normal, nice, kind person. Anyone can be polite and kind and people who have the privilege and money and attention should understand that. If they don't, then fuck 'em.
But now in his precious, wounded response on his band's incredibly pretentious website (you need a road map to find this response: go here, click "Win" and then "Win's Scrapbook" -- or if you are a regular person just click here to read it transcribed), Butler responds this way:
The only time we have ever shared a stage with the Flaming Lips was our last show on the Funeral tour at a festival in Las Vegas (over 3 years ago)...we arrived the morning of the show from Brazil, slept all day and awoke into some kind of surreal Vegas jet-lag dream in which we were playing after the Flaming Lips...how strange...I was really excited to meet Wayne. Clouds Taste Metallic was a huge record for me, and growing up in the weirdness of Houston, I always imagined Oklahoma City to be in the same universe. I was really nervous to meet him and I felt a little weird that we were playing after them. We traded a little hello, but he was a hard guy to get a read on. Steven Drodz was super nice, and I felt good after talking to him...(Cluelessness emphasized.) But Coyne wasn't really complaining that the Arcade Fire were rude to him -- he's saying they were pompous dicks who placed themselves on a higher plane than the non-celebrity-musicians who surrounded them!
So...I am not sure Wayne is the best judge (based on seeing us play at a couple of festivals) if we are righteous, kind and goodhearted people like The Edge and Justin Timberlake (who I am sure he knows intimately as well). I can't imagine a reason why we would have been pompous towards The Flaming Lips, a band we have always loved, on that particular night, all those years ago. [...]
At times like these I am comforted by knowing that even though Wayne slammed Beck all those years ago, he seems like a really nice guy to me. I guess everyone has a different idea of what being pompous means.
And to counter this charge, Butler responds that he, Win Butler a.) was perfectly polite to fellow celebrity musician Wayne Coyne, b.) doubts that Coyne is really that well-acquainted with super-famous celebrity musicians the Edge and Justin Timberlake, and c.) is unlike Coyne in that he, Win Butler, actually is friends with super-famous celebrity musician Beck.
We're going to score this one a big win for Wayne Coyne and a big loss for Win.
(image stolen from BrooklynVegan)