or at least they used to be, until the daytime meme started to go around...
Mornings were awesome.
But I can't attribute it to the americans being more stupid, I think it's more like 4chan being too popular in the states. Popularity draws the regular, unfiltered populace, and therefore, yugi threads and roulette games everywhere as soon as the schools are out.
The rest of us had to look around for 4chan, so it filters the stupid out. Of course, until it becomes popular there.
That's my theory, I could be wrong.