The difference is that breaking a caffeine addiction is feeling like shit for 2-3 days. And then you're done.
Breaking a nicotine addiction is something most people struggle with for years.
Breaking a nicotine addiction is something most people struggle with for years.
The Gwern article posted earlier is more about the benefits of nicotine, but does note that nicotine is potentially more disruptive than caffeine: "we will want to be more careful with the nicotine than with modafinil or caffeine, where the main consequence of carelessness is tolerance rendering the stimulant useless or messing up our sleep for a few days."
Also note that the article specifically calls out that vaping is an issue, and the author is only comfortable with the use of nicotine gum.
It mainly points out that if you are extremely careful with the addictive properties, it's a decent drug. But no, I don't think we're throwing the baby out with the bathwater because the lack of studies on the topic of vaping, and the potential of saddling you with a difficult to shake addiction.