They are idiots regurgititating the anti-vaping propaganda spread by BT. They don't even know they are idiots, which is not uncommon with idiots. They just glommed onto a popular opinion against something, and they need something to be against that they can criticize others for, because they are very unhappy people to start with. It's so very hard to be happy when you are an idiot. Life does not go well for them, they can't even come up with their own opinions, they have to poach them from other negative idiots, which is how they got their stupid ideas about vaping. You can quite safely ignore these idiots.