I have sort of come to accept that people will do dumb things. There's no point getting in a huff about it.
I was trying to educate someone on Instagram who was claiming their batteries were pushing 150A through a .07 ohm coil (uh, that's like a couple thousand watts buddy). For me, vaping isn't about clouds and stuff (though I do like my clouds), it's a smoking cessation technique. One that actually works, unlike gum or nicotine patches or whatever.
So yeah. It's about not smoking, not blowing large clouds. It's not a contest. It's not a competition. It is a hobby, but this isn't a game, and there's nothing to win. There will be people who will never understand that, and there's nothing anyone can do about it.
Also the vocal minority is a big thing in the vape community. The people you most often see are the extreme cases of idiotic and excessive sub-ohming. The people you don't often see are the ones who have used vaping to quit cigarettes. The mature people (not even necessarily "old people", I'm a youngin' myself at 23 years) will do it right, and the immature idiots will continue to do it wrong. If people don't want to learn about proper safety, then they're flat-out dumb, and if someone is refusing to accept knowledge, there's nothing really you can do about it but move on and hope they don't ruin vaping for the rest of us.