I have no problems with diketones. Some of my the most frequently used flavors have them and i usually use V1 series, not v2. But still i am TOTALLY against non-transparent policies of some companies, who don't provide detailed MSDS sheets / DAAP reports for their flavorings. It is a health question and many vapers / their customers want to avoid those flavors. This makes me questioning about what are they hiding. Could i trust them and their products?
For me, reportings about the Diacetyl, Acetyl Propinoyl, and Acetoin levels, use of oils, sugars, corn syrup, aspartame, GMO etc are a must and that's why my ratings will always be 1/5 stars for non-transparent products. I can imagine that when dozens of vapers will do the same, all those companies will be forced to become more transparent due to under-average ratings and they will finally stop ignoring their customers.
Also, this may make vaping even safer in the future (before attacking this sentence... we all know what garbage was in liquids in the past and how much better this is now; industry was forced to change). And if it's even safer and more transparent, then voice of vapers can be heard even more (maybe less regulations and better public opinion).
What are your thoughts? Do they need to provide those reports or not?