Is goonguy associated with goonstation?

[vampirate]

Understanding sarcasm has nothing to do with being/not being American, by the way.

It's not some closed source code that can only be unlocked with sufficient muricanism.

Sarcasm is a uniquely English idea. Sarcasm doesn't really exist in non-Western cultures so some non-Western people might not understand it immediately, particularly without vocal or body cues.

This is occasionally true, as in Japan, but China has quite a bit of sarcasm. It varies from culture to culture. There isn't just "eastern culture" and "western culture". it's a big world... with a varied people.