It is completely feasible that you simply are more susceptible to the effects of plain nicotine, e.g. due to differences in nAChR genes, or maybe you already had a MAOI source in your daily diet, e.g. medications, cannabis smoke, coffee, soy sauce, beer, wine, sake, roasted/grilled foods...
You're spreading misinformation and could get other people addicted. You're making assumptions on my diet just to dismiss the well-known fact that nicotine is addictive[1]. Most sites that say otherwise are either social media sites like reddit where echo chambers form, or they're obviously pro-ecig and extremely biased.
There are plenty of academic studies regarding the matter of MAOIs in tobacco smoke, and their addictiveness.
Also, most studies on smoking do not make a difference between smoking and pure nicotine. It would be great if you could check the sources of the Wikipedia article to see if this is the case there.