To a certain extent, I guess that's a question that could have been directed to industry. Certainly diacetyl is used in some flavourings, particularly to create buttery flavours. That may make the product more appealing to some people. That's it. Appealing flavours have been an important part of the success that some people have had in quitting smoking by using vaping products. That's all I can offer.
On March 19th, 2018. See this statement in context.