You seem rather upset with the idea that, while there are millions and millions of vapers, and people have been vaping for at least 6 years, not one has come forward and said that his/her lungs have been damaged by vaping. Not one has come forward. Nor has a single doctor reported a case. Much less a statistically meaningful number.You have access to this medical information on individuals ........ how?
Oh, wait, you read anecdotals on internet forums..........I guess that qualifies as a "study" now.
I remember when Dr. F. tested all those eliquids and 10% had more than 100 times higher diacetyl levels than the current safety limits.
"diacetyl exposure causes a decline in lung function which can be detected by a reduction in FEV1".......so if you have some tests on 100+ people showing they do NOT have reduced FEV1 results while vaping DA/AP heavy eliquids, then post the study up.
And as I've discussed previously, you are so upset you feel the need to put words in my mouth. I did not say there are none. I just suggested if they are out there, they are very strangely silent. Occam's Razor suggests they are so silent because they do not exist. But you might want to expend some of your anger at finding them. If vaping is damaging people then it is reasonable to assume that, at minimum, 10% are damaged. That gives you hundreds of thousands of lung damaged people out there. Find a couple and prove me wrong.
It is amazing how badly people want to shoot the messenger who delivers this very simple fact. They simply WANT TO BELIEVE that vaping is harmful. I guess.