The success rate of never smoking/vaping in the first place is 100%.
The success rate of quitting is really up to the individual, much like weight loss or other self improvement stuff. But even if it's hard it's the thing you should do.
I'm really not sure what you're arguing. "Quitting is hard and a lot of people fail so .. don't quit." That's some lame mentality right there.
Not OP, but chewing normal non-nic gum is commonly used as in combination with other quitting methods to help appeal to the physical oral sensations associate with smoking (obviously it's not a perfect proxy, but just "something to do with your mouth).
Ultimately, all cessation methods are aiming to require 0 nicotine at their conclusion. As for the "best thing" to do when trying to quit, financial loss seems to be a good incentive. http://www.nejm.org/doi/full/10.1056/NEJMoa1414293
Would you please do a better job of following the site guidelines? You frequently either cross the line or straddle it. By doing this, you damage the community in its most vulnerable place. I'm sure you wouldn't do that with other shared resources, and since you use HN, we'd appreciate your helping to take care of it as well, even when other comments are annoying, wrong, or absurd. Especially then.
