Why is kind 20000 necessary? Isn't the geohash separate from that, like just a tag that goes onto other notes?
bitchat now has regional chat, using geohashes and nostr (kind 20000). in TestFlight. https://github.com/permissionlesstech/bitchat/releases/tag/v1.3.0

Why is kind 20000 necessary? Isn't the geohash separate from that, like just a tag that goes onto other notes?