I am all for friends helping friends, but I have not seen any supportive posts in this thread. There are some neutral posts and strong arguments, some straw man arguments, and a good amount of bickering and name calling. But no posts providing support or advice for quitting smoking.
There is no justification for smoking, just as their is no justification for drinking alcohol, caffeine, or eating a bag of cheetos. All are bad for us, but they make us feel good in one way or another and we should be free to choose as we wish.
Very few of us (if any) live perfectly healthy lives. With that in mind, nonsmokers should not criticize smokers anymore than a non-caffeine drinker should criticize a caffeine drinker or than a vegetarian should criticize an omnivore/carnivore (or vice versa).
I brought up dietary habits, because heart disease is (by far) the leading killer in the U.S (
http://www.cdc.gov/nchs/FASTATS/lcod.htm). I see similarities between smoking and an unhealthy diet in the following way. The consequences of both do not appear until later in life (for most people). A single cigarette or a single bacon cheeseburger may appear harmless at the time, but add up the number of unhealthy choices we make over a lifetime we will find ourselves at age 60+ with blackened, tumorous lungs and/or an enlarged heart and hardened arteries.
As my wife says (and we all learned in kindergarten), "keep your eyes on your own paper."
Live your own life to the best of your ability and don't judge or chastise others because their life choices differ from yours. We all have much greater worries than whether or not our 'neighbor' smokes.
I could continue on about how the monkey of addiction overrides all logic, common sense, and intelligence, alas I have babbled on long enough...