Please don't take HN threads into nationalistic flamewar on top of religious flamewar.
I do not believe that your assumption that such comments come more from the US than from other countries is true. I just checked a bunch of examples of comments that I've scolded over the years for this reason, and roughly 50% were from the US (maybe less—I lost count at one point). This is similar to the distribution of HN users overall.
