Character setup alternate job titles.

[Technature]

Obvious problem of course would be people putting those on others that aren't really new etc.

I don't see the problem.

If I want to put a "I'm a Trainee" badge on a captain because they killed themselves in a self-surgery experiment, then I will fucking do it.

Though differentiating between a funny insult and a genuine newbie wouldn't hurt.  Make it so when examined, the sticker either looks cleanly applied (newbie) or sloppily slapped on at an angle (big fat doo doo head).