So you think it's a fad, fine. But why the hatred for it? Why do you think they're bad? Have you seen research that shows them to be unhealthy? Did you have a b

So you think it's a fad, fine. But why the hatred for it? Why do you think they're bad? Have you seen research that shows them to be unhealthy? Did you have a bad experience with them? I'm trying to understand what you feel is disadvantageous about them in light of my and others' experiences to the contrary.