I'm secure enough about my country that I don't have a problem poking fun at it. My only problem with the list is the title. I don't hear the word "Americanism" used very often, and if I do, it usually refers to an idiomatic expression that only Americans use. It's a terribly imprecise and misleading category. And on RIA, the title really is everything. So, yeah, it kinda sucks.
