In the forum, there is a discussion on the enormous variety of values for some tags, see https://forum.openstreetmap.org/viewtopic.php?id=55541 (in Dutch). There is also a link to a list showing the different values for the "shop" tag: http://mijndev.openstreetmap.nl/~marczoutendijk/taginfo-shop.html You can see there that the combination "shop=no" exists 2372 times, "shop=none" 4 times. With our current default style, they'd be summed up by the line shop=* [0x2e0c resolution 24] which just would make them into a shop. I guess we should better ignore the shop=no/none combination (note: a value containing "no" may still be correct), and provide a PoI based on the other tags for that node. What do you think? Regards, Bernhard