I have to admit I haven't read the whole thread, but I offer this to the discussion: Smoking onboard is unsafe, that's why it was abandoned. Furthermore, it is against most federal laws to smoke onboard, hence the briefing upon boarding and all the verbal and visual cues on the plane.
What kind of example would the crew set if they smoked themselves, especialy the commender of the ship! Do as I say and not as I do?
It is also unhealthy as both first and second hand smoking are known cause of cancer. If one wants to smoke his life away that's one's choice, but one should not force others to smoke with him in a little cell called the flight deck!
Just a friendly note for those that still think they are above the law: YOU'RE NOT, STOP SMOKING ONBOARD!!