On 2017 Sep 18, Clive Bates commented:

I may have misunderstood the study, but the findings and conclusions seem banal...

The authors were comparing products that actually exist with products that don't, given all e-cigs are flavoured in some way and flavours are integral to the product. Obviously, the producers don't set out to produce unappealing products, and 'appeal' is central to the role these products play in harm reduction - as low-risk alternatives to smoking. ​The authors discover that unflavoured, low-nicotine vaping products are less popular than those with flavours. Of course, they are... but only in the same way people prefer orange juice that tastes of oranges rather than water, and sausages that taste of meat rather than sawdust.

On 2017 Sep 18, Clive Bates commented:

I may have misunderstood the study, but the findings and conclusions seem banal...

The authors were comparing products that actually exist with products that don't, given all e-cigs are flavoured in some way and flavours are integral to the product. Obviously, the producers don't set out to produce unappealing products, and 'appeal' is central to the role these products play in harm reduction - as low-risk alternatives to smoking. ​The authors discover that unflavoured, low-nicotine vaping products are less popular than those with flavours. Of course, they are... but only in the same way people prefer orange juice that tastes of oranges rather than water, and sausages that taste of meat rather than sawdust.