Not sure why you and Kent (perhaps others) are splitting hairs on this. But as long as you are, I'll be glad to quote Dr. F. again and claim that no, the issue is that it is sweet flavors and is how if this does blow up, it will be portrayed. This has potential to be a rather significant issue. Take away the wonderful assortment of (safe) sweet flavors from vaping and while harm reduction sounds cool and all, the industry will be far far worse if we head in that direction. And yes, I do realize there will be a segment of vapers that always treat this as a non-issue.
I hope it forever stays an insignificant issue and that all who have great concern about this feel they can find a product that satisfies them. I mean, I really really hope that is the case. Fingers crossed.
The recognized harmful-to-inhale flavoring components of this topic are generally known as "buttery."
Some mixed flavors, like custard, banana cream, or french toast, of course will have a significant buttery component.
A flavor which is not commonly thought of to have a buttery flavor, like strawberry for example, can be made without the subject harmful ingredients.
However, a relatively small amount of a buttery flavoring can be added to strawberry, or other basic flavors, to "take the edge off," and result in a somewhat "smoother" ejuice. Edit: Too much butteryness added would bring the flavor more toward the strawberry shortcake point.
Bakery flavors are sometime categorized as "sweet." But something like Wintergreen, while sweet, might not need any buttery flavoring to be added to it, in order to make it taste "right." Or it might. So maybe the term "sweet flavors" isn't a real good description word. Only the original user would know for sure what he was intending to communicate there.
While there has been some
health concerns over various sweeteners used for ejuices, that's a different topic all together. And that type of discussion would certainly pertain to
all sweet flavors, while, technically, the buttery flavor components do not.
Anyone should please correct me if I'm wrong about any of that.