Frankly, I couldn't care less about what someone else wants to vape, so there's that. But my issue has always been that if someone chooses the opposite and wants to vape flavors without diketones (which is just as much their prerogative as someone that does want to), then the vendor that states their eliquid has none must either show test results or show test results. One or the other. If a vendor does not want to show or perform tests, they should not speak on the matter or just say "we don't know." I got no qualms with that.
But to your #1, I will respectfully take that head on: linking the act of vaping, since its inception, with where we are today doesn't hold much water in this context (unless you vape like we did all those years ago). vaping has been around for over 6 years, yes, but in its current form with the incredible rise in popularity and accessibility of juice guzzling, high-heat atomizers, it's only existed for (at best) a smidgen over a couple years. When vaping first began it was hard work just to go through a 3-5 mL a day (though I am sure some die-hards manged to do so), now most can plow through that in a 10-15 miuntes! Also, the liquid has changed as much as gear. Gone are the days of the simple flavors of tobacco, cherry, cola and bubble gum; enter in uber-rich, decadent liquids like caramel glazed butter-milk panna cota. So until we can say that vaping has been around for 6+ years in its current form, we can't link juice-guzzling, extreme heat atomizers drinking up newfangled dessert liquids with the past when a cartomizer and an ego was puffing on some acetyl pyrazine and tobacco absolute.
Note: I am not saying that there is any reason for anyone to be afraid, but if one is not afraid becasue vaping has existed for 6+ years and no one has developed popcorn lung, I recommend finding another rationale because that one is a bit off-base--again, unless you vape the same as back then.
Very sound arguments. I particularly like the very first one: I don't care what other people vape, it's their life and their problem and their decision, and I have no control-freak need to control or compel anyone.
In fact, I don't know that diketones are any risk, in vaping. My main rationale for choosing not to use them is linked to my asthma; apparently the major symptom of B. O. is shortness of breath -- considering that I feel like that about half the time anyway, how the heck would I know if my shortness of breath was my usual asthma, or something far worse? I wouldn't. So it's just better I not go there at all, as much as I'm able -- I took the step of going to DIY, because I'm a very cynical, untrusting person, and I believe maybe .01 of what I read and maybe .5 of what I see; I prefer to trust the flavor mfr's because they're not johnny-come-latelys trying to get rich quick on the vape game; they'll still be here, no matter what happens to vaping.
But I would never presume to imagine that anyone else abstain from diketones if they do not share my circumstances of both asthma (or COPD, also bad for short-of-breath problems) and cynicism. If someone truly requires that sort of flavor to stay happily smoke-free, then vaping diketones has GOT to be less harmful than smoking.
Andria