Ok...
So with all this talk about what is or isn't a sin...Let's review.
The goal of Christianity and our behavior is to "Love the Lord thy God with all heart, mind, and power". Which gets expressed by loving our neighbors.
So in short, we are supposed to work towards being more loving.
So...
How does consuming, touching, tasting or artistic expression anything (like alcohol, piercings, tattoos, or tobacco) have to do with not loving others or God?
JohnDB,
You've only given half of the goal of Christianity, 'Love the Lord....' The other half is, 'The second is equally important: 'Love your neighbor as yourself.' No other commandment is greater than these' (Mark 12:31 NLT).
How can you love your neighbour as yourself and blow cigarette smoke into their atmosphere for their inhaling? Same goes with alcohol, piercings and tattoos that may cause your Christian neighbour to stumble or sin. I think you are brushing aside these issues too lightly.
Christianity has a number of other goals, some of which are behavioural. If you don't believe me, take a read of Matt 25:31-46 (NLT) and James 2:14-26 (NLT).
Oz