I had no idea there were so many tattoo-covered vapers on HN. Clearly, the userbase isn't what it was 10 years ago. I guess the low-IQ reddit Septemberists have completely taken over.
You should be aware that many people stereotype vapers as being less intelligent, more impulsive, and generally trashier than non-vapers, similar to how those with tattoos, ear gauges, or other noticeable body modifications are stereotyped.
In other words, unless you're already a smoker, vaping is a habit you should avoid taking up, because it can have negative social and economic consequences for you.
And stereotypes generally (but not always) have a kernel of truth to them. For example, tattooed people probably are less intelligent on average than the non-tattooed: http://emilkirkegaard.dk/en/?p=5616