I've assumed the absolute worst of disposable ones since day zero. I will go back closer to neutral if I hear something convincing, but until then I think of them as literal poison.

My previous comment was thinking more about whatever the non disposable ones are called. But since as far as I know the juices are similar and since nobody seems to know much about them, I assume the absolute worst until hearing something really good indicating otherwise. Personally, I will always treat them as literally drinking cancer.

I mean I still judge smokers, and thereby vapers, but at the very least the vapers smell better. I had one roommate take it up to stop regular smoking (he never did it in our seemingly near) the house, and wasn't a problem, but another roommate who didn't smoke found out about the non nicotine version of it and thought it was cool for a bit, testing it as breathing flavored air. They both got a couple upgrades for their doodads, and the non smoker stopped later, but I haven't talked to the other guy in a while to know if he ever stopped nicotine completely or continues to vape.