I don't think we're arguing at all.

I don't think anyone knows for sure what to make of it all. People are (and have been for years) experimenting with e-cigs and eliquids in search of that elusive cigarette-like sensation. Many smokers have been able to quit with just plain freebase nicotine. Others (80% per recent study) have been less successful. The less fortunate among us have been on a never-ending quest to find that "missing ingredient," be it WTA, high-wattage vaping, nicotine salts, or heated (not burned) tobacco, like the 2009 awful Ploom (
The Ploom is Here) or 2018 IQOS.
There's something interesting, if not fully understood yet, about the nicotine salts. A recent study by Goniewicz et. al. concluded that, "The nicotine in the vapor of these products was nearly at levels delivered by tobacco cigarettes. Moreover,
the users' levels of cotinine, a byproduct of nicotine, were even higher than the levels seen among teen cigarette smokers. That finding is most likely due to the salt form of nicotine in these devices, which is absorbed more easily than other forms, the researchers explained."
Study: Juuls have similar nicotine level as cigarettes, absorbed by body faster
I just read and read and try to understand myself.