"You have no business telling another adult to stop <insert crime here>"
How about... theft? It isn't hurting anyone.
YOU HAVE NO BUSINESS TELLING ANOTHER ADULT TO STOP STEALING YOUR STUFF!
How about the ironic bit (b_crazy might not understand this one, luckily no-one asked for his advice on the matter):
YOU HAVE NO BUSINESS TELLING ANOTHER ADULT WHAT THEIR BUSINESS IS!
Or how about something topical in the threads... sex with a 4 year old?
YOU HAVE NO BUSINESS TELLING OTHER ADULTS NOT TO HAVE SEX WITH 4 YEAR OLDS!
But that would only lead to a response to a facepalm and a comment along the lines of "you are comparing rape to smoking..." - which obviously I'm not.
Here you are waging your finger and lecturing, telling people what they can or cant say on public forums.It's not my job to wag my finger at smokers and lecture them about the dangers of smoking or tell them they're obviously idiots or selfish because they don't live their lives entirely in service to someone else's desires for them.