Yeah, I dropped out of nextdoor within a couple of months of joining.
We had set up a group to support Trump and America First values, and it was supposed to be a semi-private group. Non-members were not supposed to see our content, but all at once we started getting moderator interference in totally innocuous memes and news and jokes.
Nextdoor is just another nazi operation by totalitarian thugs.
The really bad thing is you don’t have to be part of any group there that makes it “obvious”. Just counter the wrong thing and you will be tattled on.