Just me personally - never heard of anything like that.
IMO, I wouldn't worry about it. I use my American spelling, pronunciation, and terminology all the time here. Nine times out of ten, people know what I'm talking about, and if they don't, they just ask me what I mean. I explain, they go "Aha," and we move on with our conversation.
And actually, people I hang out with like it when I use my American English. They find it fascinating learning what terminology Americans have that's different.