[Ace's Dad]

As of a few years ago, all Lieutenant Commanders and Commanders are referred to as "Commanders." LCDRs had the title of "Mister."

Used to really bother me. (Well, that's not the word I would use for "bother").

[dp0622]

I guessed that :)

Why refer to two different titles with one title?

[ETCM]

As of a few years ago, all Lieutenant Commanders and Commanders are referred to as "Commanders."

Unless that's something new, no one calls LCDR's "Commander" other than they themselves. There was an old joke that they were "phone Commanders", as in, they answered their phone as CDR So-and-so. In a very informal setting, they might be called CDR to stroke their ego, but rarely. I know during my 30 years in, I never did.