My neighborhood uses NextDoor too. 4 other nearby subdivisions are linked in so we can choose whether we want to post to our immediate neighbors, or everyone. Right now many discussions about upcoming town council elections are taking place, and Halloween parties. It's used for questions/recommendations about contractors, building alerts (road patching, how/when you can access your garage if in the work zone), bulk trash pickup days, etc. There are many posts about missing or found pets. Also, neighbors are vigilent in announcing safety alerts I.e. a car lurking near the children's playground. Ours has a moderator and rules. We can question what our HOA company or Board members are doing but it can't be used for ragging on them.