During my high school years, me as a non religious person was having a hot discussion with some other guys who were claiming that smoking cigarettes were not haram. Then one of the guys pointed out someone and said "Look, here comes the akhoond (title for an Islamic cleric) of the local mosque, we can ask him." While approaching us, he took a very long and deep puff from his cigarette, inhaled the smoked, flicked the cigarette and exhaled while saying "Hey guys, what's up?". This cleric said the exact thing that Ali said above, in some way tried to prove his addiction.
You can smoke a pipe or a cigarette, you can even jump off a cliff, do I care? No. Do I have any rights to judge you? Not unless your action somehow affects my life or lifestyle or health. I just don't understand the way Muslims try to prove themselves. Smoke the pipe my brother, eat the bacon, I don't care, you are the one responsible for yourself, you will be the one going to the Hell according to your own beliefs. Just don't do that "proving yourself right" thing. Smoking tobacco is HARAM in Islam. Especially if it is pleasing. If you are listening to a music or looking at a painting and having pleasure, it is haram. Someone will come and say "No, it is not the real Islam." It is my friend. If tobacco is harmful to your body and at the same time it is pleasing, then it is double haram (there is no such term as double haram, I am just trying to say that it is haram from all aspects).