You're welcome to believe whatever you want.

I am not advocating saying GD... in fact, I think that IS A SIN!!! What it isn't, is taking His name in vain... at least in relation to the idea that "God" is in ANY WAY shape or form "His name."
I wasn't going to go here but to be clear... if you look up that commandment you will find that the word we translate as "take" is "nasah" which is the word for "hold up" or "elevate" or "exalt." Since "shem" (name) deals with character and authority... then the commandment is literally saying, "do not exalt or elevate His authority and character in a manner in which it appears worthless (vain) to the world around you."