Maybe my perception of this issue is faulty, but ... it seems to me it's mostly the moderate and MTL vapers who have problems with their "craving" for nicotine and who are insecure about the dosage of nic in their juice, no?
Is it possible that the craving isn't so strong, or present at all, for those who chuck big clouds at superlow nic% all day (like me)? Not because big clouds translate to big nicotine intake (which they don't), but because the habitual side of the intake process is so much more intense and basically leaves no room for additional desires to build up and take over?
I mean, if nicotine itself were really "the problem", then wouldn't things like nicotine chewing gums or skin patches eliminate the need to smoke, or for additional nicotine intake ? But isn't it so that these helpers have a success rate of below 5%? That would make me suspicious...