It's too bad, I think idea of organizing a social network based on proximity and centered around community information is a viable idea, It's just that NextDoor is doing that with our worst instincts.
Shameless plug: We are exactly working on this and want to bring better community information app without other distractions. Currently only in Denmark.Will be updating the details soon.
However, I agree that the way NextDoor is handling community interactions is really disturbing.