I completely and totally hate that acronym.
People throw it around as easily as they say GD.
I don't mind OMG because it could mean "Oh my goodness or Oh My Gosh."
But there's no getting around the F and it totally changes the Oh My Goodness into an awful term. Whenever I see that acronym it sears into my brain like a hot arrow and then the worst is that the words get stuck in my brain and bounces around for hours. I don't know why.
One day I decided I am not going to allow abominable words to rule my thoughts and decided to give OMFG a new meaning and came up with "Oh My Favorite Gelato!"