At best, you have a transmission radius of under 200m with BLEβthat's just the street you live on. Furthermore, you have to join a channel using the /j command for others to see you on the Bitchat Map. Honestly, I would recommend Wirwin instead, where Bitchat is integrated. Getting socialists to agree on something borders on impossibility.
Discussion
geohash doesn't use local mesh though. but perhaps you're saying you have to use channels in geohashes? that'd be new to me since i was playing with it acouple months back