amenity=playground

[joto]

The Schema refers to a tag amenity=playground which is almost never used as well as the very common leisure=playground. See also the comparison. We should probably remove amenity=playground.

[westnordost]

Was probably a mistake / typo

[zyphlar]

Likewise an absence of sport pitches and tracks creates conspicuous holes in many areas https://www.openstreetmap.org/#map=16/44.94335/-123.02254&layers=S

[pnorman]

I'm okay removing this in a minor version. Even though it's not never set, it's the type of situation this line of the spec was for

removal of fields where other changes mean that the field is never set

as well as

We reserve the right to make changes that we would normally not do, if actual tagging in OpenStreetMap changes in a way that it doesn’t make sense any more.

I'll put removing this on the to-vote list