If you spell 'scuba' in all caps, why?

Yeah, it’s basically archaic usage at this point, but still legit.

^^Well, yeah. M-W revoked its ‘acronym only’ status at least 40 years ago. I’d say at this point, it’s archaic. Anyway, carry on, prescriptivists!

I was an instructor at a school for a long range navigation system. We called it LORAN.

Too soon?

19 years, give or take a few hours.

Well, an experienced pilot would not have lost his head. I guess it runs in the family.