This is wrong. Nicotine alone is less addictive than the nicotine-MAOI combination, but it is still extremely addictive. I started with vaping.
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.