Surely this is a mistake dang? It's prima facie absurd and if not that unnecessarily stifling. The thread is already talking about the statistics of America, it's not flamebait to bring that up. One may disagree with op, but who would actually complain about it being added to the discussion itself? Doesn't creating a situation where something like this can't even be said more contribute to an atmosphere of passive aggressiveness than not?
I don't think it's a mistake; the comment didn't add any information; it consisted of generic negative rhetoric plus markers of internet snark (leading "Eh", "actual").
This kind of thing just doesn't lead to good HN discussion. It's at best a generic tangent and more likely a generic flamewar tangent.