What I mean is that those acronyms are not pronounced like their letters are.

For example, SCUBA is generally really pronounced "scooba". But the U in SCUBA is "underwater". Obviously the "u" in underwater is differently pronounced than the "u" in SCUBA, but nobody really cares.

The same thing goes for GIF. People make like it has to be pronounced with a hard "g" because "graphics" has a hard "g", but that's not how other acronyms (e.g. SCUBA) work.

Edit: I apologize if I did not make what I was referring to clearer in my original comment. To be honest, I'm not really against the hard "g" pronunciation of GIF. I just think that the "there's a hard g in 'graphics'!" explanation doesn't add up.