The hacking might also have had something to do with it.
Maybe he's too pro for you 
What is this? I don't even
Anyway, why are you joining a server called "AussieAssault" when you're American? I CANT THE LOGIC DURRR LOGIC LOLLLLL
Because he wants to try out new servers? And your logic is too poor? 
They want to try and troll and hack on new servers. "And your logic is too poor" doesn't make any sense. Please try again. Are you trying to say my logic is TOO bad, or that my logic is poor too? I don't even understand. Why can't they try out new American servers, where he won't:
-Be alienated
-Have a high ping
-Not understand our culture differences.
Even australian shits like you are coming to R Funserver CZ and there we can see their behavior 
Isn't that some kind of server like X? If its a fun gametype, nobodies going to care about ping. Besides, I doubt these "Australian Shits" will hack, evade, abuse admins, and then go whine on other forums.
Anyway there's not a rule which says that American guys can't join.
Theres a rule that says no hacking, no evading, and so forth. Theres also a ping limit to avoid laggers.
UMADM8?
EDIT: I might be coming across as anti-American here. I'm anti-idiot. I know quite a lot of cool Americans.