There was a 600 lb brother who was a MS at my old hall. I would have felt more compassion for him if I didn't always see him pigging out at Friendlys.
Despite his gluttony I don't think anyone should be judged for smoking, overeating or overdrinking. Most of these activities are symptoms of underlying illness. I myself used to self medicate with alchohol until I figured out that I was just masking depression. Diet and exercise helps now.
If you want to kick someone out of your organization because you don't allow smoking in your organization thats fine. Just don't judge the person as though they are a sinner and you are not.
I believe that there is nothing that defiles the flesh. We are all just a little sick in some way. The first century sheep farmers didn't know about depression, biploar or other mental illnesses. They had no understanding of genetic or hormonal disorders. And forget them even having a clue about chromosome related conditions and birth defects. We have come along way as a society so why would anyone want to go back 2,000 years in knowledge. Next you'll be praying to the sun for your next meal.