On 6 March 2016 08:47:36 GMT+00:00, Ralph Aytoun <ralph.ayt...@ntlworld.com> 
wrote:
>My personal opinion is that this is getting totally out of hand.
>Shops pay a lot of money to advertise their wares and you are stepping
>in 
>and trying to do commercial marketing for free.
>Not only that but who is going to maintain this information? Shops
>rotate 
>their stocks on a seasonal basis. They also stock multiple brands!
>
>So we will end up with tagging ...
>sells:bread:white:medium:Hovis=
>sells:bread:white:thick:Hovis=
>sells:bread:50-50:medium:Hovis=
>sells:bread:white:medium:Own_Brand=
>sells:bread:white:thick:Own_Brand=
>etc. etc. etc.
>
>With this kind of trend we are definitely moving away from the realms
>of 
>sustainable Mapping and creating some kind of stock take for each shop!
>And 
>some of us know that with regard to stock taking even the shops
>themselves 
>are hard pressed to maintain an up-to-date record. So where does that
>leave 
>us two weeks, two months or two years down the line?

I agree that this can get out of hand quickly and become unmaintainable. The 
detail level of some sells:* examples worry me.

But I can see its use for tagging oddities. You'd have the traditional tags 
implying what the place sells, and use the sells tag for exceptions, for 
example:
amenity=pub
sells:alcohol:wine=no
sells:books=yes


-- 
Vincent Dp

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