Unless Hawkmoon is talking to the Danes (and I don't think we have any here), there's nothing cheap about what he said. Our side also needs reminders that mass murders are not something that only happen in America, with our crazy, American gun laws. Anyway, it's not as if APS has right-wing and left-wing subforums, and he only posted to the right-wing subforum.
If anything, the echo chamber-ness of APS makes it a better place for this thread. It's not Twitter or Facebook, or some other, high-profile site that "everyone" reads. Hawkmoon isn't going to make any money from this thread, or sell anymore books, or get an interview on FOX. He's just talking to like-minded people. So what's the harm?
I think we're allowed to have political discussions here, and that's what Hawkmoon started - probably should have gone in Politics, of course. Someone else could start a thread on the shooting, itself, if they like.