Judging by the arrogance of SQWAK's post it's not hard to see why some yanks have a hard time at CX.
Most of the world has no problem understanding the American English. It is the most widely spoken version.
Yeah, right...
Jumping on some guy because he says "point" instead of "decimal" is idiotic.
The "point" is that "decimal" is the correct ICAO terminology, used by most of the world outside the good ole US of A. The yanks might get away with non-ICAO terminology within their own borders - it doesn't mean the rest of the world has to follow.