[Tagging] no:XX versus not:XX for non-existing objects

[Martin Koppenhoefer]

sent from a phone

> On 19 Sep 2021, at 12:51, 80hnhtv4agou--- via Tagging <tagging at openstreetmap.org> wrote:
> 
> no:XX
> - 200 uses with 20 different keys
> - https://wiki.openstreetmap.org/wiki/Key:no:
> - https://taginfo.openstreetmap.org/search?q=no%3A
> 
> not:XX
> - 20k uses with 200 different keys
> - https://wiki.openstreetmap.org/wiki/Key:not:
> - https://taginfo.openstreetmap.org/search?q=not%3A
> 
> Both Wiki pages read almost identical, with slightly different
> stress on objects that don't exist any more but are still visible on
> images versus objects that never existed but could be assumed to be
> there.


looking at the usage, for “not:” the leading tags are properties (not:name, not:addr:postcode, even not:motor_vehicle which seems mistagged motor_vehicle=no) while the no: prefix is used for object classes.
But even then, albeit documented only since 2019 with its own page (already in use for 10 years by then) the not: prefix has still much more usage also for object classes.

I am tending towards deprecating “no:”

Some tags seem clearly questionable, e.g. “no:description”

Cheers Martin 
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