From the graph in the parent post, it looks like Juuling, not "real" (as in inhale-burning-tobacco) smoking.
Just as addicting, though. And it's just as much of a customer retention strategy as it ever was.
IIRC, vaping pure nicotine might be less addictive than smoking tobacco because tobacco contains a ton of other chemicals
Nicotine in e-liquid lacks the MAOIs that tobacco contains, so it's a stretch to claim it is equally addictive. See: https://www.nature.com/articles/1300987