Even identifying medical doctors may not be the most helpful. I know many paramedics that do more cardiac arrests and respiratory failure calls in a month than even some ER Docs. Same thing with pilots. Unless both pilots are unconscious/in a coma, air regs aren't going to allow any non-company pilots take control. And even in that situation, anyone seen the JAG episode of a fighter pilot trying to land a 747....

And in order to stay on topic.... I think all of the post-nominals/titles, I think they're a hold over from an era when everyone was address by their title. But those are only my thoughts.

On the other hand, would it be a breach of privacy if they identified the status holder's age? That being said I've never been challenged with AC, even though I am on the younger end of the spectrum...don't know if that's a blessing or a curse...