"As for the "addiction" theme..." I'd add that the word "addiction" itself has suffered a rather odd redefinition, even "officially", to include many activities we once would never classify as addictions, for instance, persistent uncontrollable urges for gambling and sex. One cannot become addicted to gambling or sex according to the definition I learned in college, which was the medical definition at the time. (And that's medical definition, not psychological witchcraft definition.) Nicotine would barely fit the low rung of that scale, in there with caffeine and cocaine as substances with low addictive action. Of the three, cocaine is probably the least addictive, since addiction requires measurable physical withdrawal symptoms, and cocaine has almost none. Heavy duty addictive substances are things like opiates, alcohol and barbiturates. The redefinition of "addiction" was needed for political and commercial purposes.