I'm one of the maintainers of the Openstreetmap-carto style, but I think the community should make tagging decisions based on what works best for mappers and what makes logical sense, without worrying what a particular renderer will do.
In this case I believe the decision to "deprecate" the tag disused=yes was made hastily without thinking clearly about the cases when it would make sense. Looking at the history, it appears that back in 2011 a certain user wanted to get "disused=yes" rendered, but was told it was a bad idea as the general way to tag a disused feature, including functional amenities and services like amenity=drinking_water, shop=, etc. The community pointed out that this would be a problem because most database users would not interpret the disused=yes tag, so it would be better to use "disused:amenity=" and "disused:shop=" instead. So then the wiki page was changed to suggest using disused:<ke> instead and eventually a strong warning was added to never use disused=yes. see https://wiki.openstreetmap.org/w/index.php?title=Key%3Adisused%3A&type=revision&diff=646737&oldid=532373 and later it was moved to the namespace: https://wiki.openstreetmap.org/w/index.php?title=Key%3Adisused%3A&type=revision&diff=879007&oldid=839686 But this is not always sensible in the case of physical features like a disused man_made=water_tower - the feature looks the same whether or not it is full of water, and general database/map users are interested in these features as orientations points in the landscape, not as part of the water supply network, so it's sensible to use man_made=water_tower + disused=yes. I think part of the confusion was caused by moving the Key:disabled (e.g. "disabled=yes") page straight to the namespaced version without clarifying things. But disabled=yes should never have been described as deprecated - it was always being used. - Joseph Eisenberg _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging