Nextdoor is the established social network for this. Like any social network it is pretty hard to overcome the first mover advantage. Anyone who wants a community like this will be on nextdoor, and you need need to get the whole neighborhood to move over. I guess you would end up with all the same toxic content, just on a new platform.
Nextdoor is mostly people asking things like "did you hear that?" I get a daily digest and it's almost all totally worthless. I haven't unsubscribed so I can remain current on how useless it is for when somebody inevitably asks me about it.
