Hey, it's the Devs who threw in titles like 'moist.'
And if a character wants to have all the NPCs call him that - well more power to him. It's always better to be able to choose for yourself what you wished to be addressed as than be 'forced' to endure a 'Have you seen it Rear Admiral, Lower Half?' (or even just plain 'Admiral') when let's say you'd rather be addressed as 'Captain' - or yes, even 'Torpedo Target' lol.
Just think of non-rank titles as monikers like fighter pilots have - "Maverik" or "Goose" for examples.