i totally get the OP's point and the source of their irritation - regardless of what they used as an example of a 'style description' of the subjects of their annoyance - it was an example - not to be taken personally as a pointed gripe against "one specific type" of person.
The ones s/he is so fed up with, are, what we called in the 80's: 'poseurs' - those who pick up something just to look cool, get in with the 'in crowd' - which then reduces a thing to just the latest fad or trendy craze.... which then snowballs into even more obnoxious uber-trendyness with all the poseurs tryna outdo each other onto bigger, more, fancier, etc . Bah. I can't stand that nonsense either..... and i can totally get why the OP is irritated by it.
because it DOES have an impact on the rest of us. An ever-growing group of irresponsible, rude, inconsiderate, in-your-face, faddists certainly CAN impact how the general public views the activity, and that CAN impact such things as the advent of rules and regulations NOT based on sound information - but on uninformed over-reaction to the obnoxious behavior they see. The public can't tell the difference between a vaper who's serious about smoking cessation or harm reduction, and one who just wants to be anti-establishment uber-cool around the martini bar (or worse, the salad bar, lol) blowing 20-foot clouds and pushing the envelope "cause I CAN! It's not illegal, i can do what i want wherever I please."
So i get the OP's point... trendy poseurs who do the activity in an ......-ish manner have the potential to jack it up for the rest of us.