Okay, so are you saying you agree with that article? If so, then you admit that the nicotine consumption between the two are not equal? And if you are so quick to feel that article validates your stance, I recommend you keep reading.
I really don't think nicotine by itself is "addictive," I think it somewhat "dependence producing," the same way that caffeine is, or it would not be sold OTC; I won't get into sugar because that's a whole 'nuther can of worms. When nicotine is consumed in combination with the other tobacco alkaloids (including MAOIs), it becomes rather more truly addictive, but I think the level of dependence/addiction will vary according to individual metabolism, susceptibility to the "addiction disease" in any form, and the delivery method. Cigarettes are really the perfect storm of all the necessary ingredients for strong dependence, even true addiction, since many people continue to smoke until it leads to their rather early deaths, even though they know the risks, they just can't quit. Some 20% if I remember correctly.
Just to judge from the accounts around here of those who find themselves decreasing their nicotine levels because they become more sensitive to the more uncomfortable effects of nicotine -- their tolerance is actually decreasing. That doesn't happen with caffeine.
Andria