I view it differently. In the same way a lot of online forums shadowban people, I look at Nextdoor as a shadowban from real life. Here these crazies are, thinking they're having this change-making dialogue with their neighbors, but in reality, they're just posting to a void on the internet while the real life version of their neighborhood continues on. (Also, the forum moderator was deleting posts from anyone that was kindly pointing out "hey, this isn't real neighborly of you.")