First, where do you find illiterate in Appy's post? It's grammatically correct.
Second, let me make sure I have the rules straight. Non-smokers aren't allowed to comment on smoking. Former smokers aren't allowed to comment on smoking.
That leaves current smokers. For some reason, I'm not entirely sure that provides an unbiased sample.
It's OK. They are a little S-E-N-S-I-T-I-V-E when they don't get their fix. Nothing makes people grouchier than pointing out to them something that is very obvious that they are trying very hard to ignore.
Now I am illiterate. Soon I will be goose-stepping on my way to take away their civil rights. Truth rides in the trunk when emotion takes the wheel.