"You may not like this but in the JW org, sins are defined by the Bible as interpreted by the wt."
So where does the bible define smoking, gambling or talking to a df'd person as a sin?
Let's have a look at punishment as defined by the bible -
Prodical son - squandered a fortune living a debauched life, came home when the money ran out - thrown a banquet.
David - had an innocent man killed to cover adultery - kept his position as king but had his baby killed.
Achan - theft - fessed up and was stoned and burned along with his entire family.
So basically pick an example and be as forgiving or harsh as you want.