18 years ago nearly it was revealed to the world that I have Aspergers, on a US based wrestling forum, ever since then I was accused of being retarded and living in a "Bubble" which the Americans kept saying they would break.
Hence my disdain to this day for interaction with Yanks online, if the comments section on most YouTube videos is to be believed, most of them are as thick as the content of a Pig's arse.
I don't think you can judge any body apart from the individuals who waste their lives posting to YouTube.
If you're happy judging by that, why not also judge Americans by the people of this forum?
Seems to me there are more Americans here than other nationalities, yet the quality of posts and insights is just as high as for UK people.
To be honest though, judging en masse is a fools game, whether it positive or negative. Only ever judge individuals.