Earlier quoted context omitted.
I'm American too (and I posted this) and I fear that you two are correct. I live on the other side of the world though, hence the posting hours. I was totally surprised to see this at #1 for a bit, though I am just happy that it's getting discussed. No candidate for president will ever get my vote unless they talk seriously about scaling back the American military-industrial complex.
Do you think the HN crowd is the type to bury their heads in the sand? I don't get that impression. I'm on here all hours of the day and I see things like this hit the front page pretty regularly. They don't stay up long, I think, because they're a bit outside the targeted topics for this site.
There's also an algorithmic penalty for "too controversial" topics with too many comments, I believe.