flash8, there are several reasons people here are considering the question.
Firstly, because it is a problem people here have had to face, and are facing time after time.
Further, because people here have to fly with senior captains who may well be very good friends with the Flight Operations Director or senior captains who might be their Sim Examiner next time they're in the sweat-box and who have a significant effect on their jobs and careers.
Also, because drunkenness is not a black-and-white affair, and is not as easy as you might think to recognise. Would you know the physiological symptoms if a captain did not know that he had developed diabetes and was hyperglycaemic? The symptoms are often confused with drunkenness. The guy may not have touched a drop, and needs medical help, not some junior F/O being moralistic, judgmental and criticising.
These are reaons forums like this exist - to educate and inform people, rather than to present uninformed, ignorant, unprofessional cut-and-dried, black-and-white answers.
Go and think about it.