There's a description for "balloon tagging" : osm.wiki/Key:aeroway#Balloons

osm.org/node/4683400091/history

What is meant by winery=yes ? osm.wiki/Key%3Awinery

balloon:memorial=plaque ? (one tag to find them all)

Wurde nie "ausdiskutiert" osm.wiki/Proposal:Model_Aerodrome, es gäbe aber einen neuen Namensraum : osm.wiki/DE:Key:aeroway#Modelle

Wo ist das genau ? https://neura-robotics.com/neura-electronics/

There's a description for "balloon tagging" : osm.wiki/Key:aeroway#Balloons

osm.org/way/278364435

The airport is mapped twice : osm.org/way/999212029/history , osm.org/way/29483207

faculty=arts;design ?
https://taginfo.openstreetmap.org/tags/faculty=arts
https://taginfo.openstreetmap.org/tags/faculty=design

If the area is ONLY for blimps, use the respective aeroway:balloon key : osm.wiki/Key:aeroway:balloon

should be "proposed" (if at all be mapped) osm.org/node/12300327666/history, see osm.wiki/Lifecycle_prefix#Stages_of_birth