For this to happen every single instance will have to fetch every community from every instance to aggregate posts and make sure new similar community is added which isn’t feasible (I think).
Give it some time, and I think organically 1-2 most popular communities will emerge for each specific topic and people will then just subscribe to those ones.
map enthusiasts looks very cool.
no feed is complete without some cat pics. thanks for sharing.
good to see you took the matters into your own hands lol