Even in my very very blue area nextdoor is almost entirely crime posting and people posting doorbell cams of brown people on the sidewalk. It's a complete wasteland.

Pro tip, if there aren't many "leads" (what nextdoor calls mods) in your area you can usually just e-mail them to volunteer and they will make you one.

I'm just now reviewing ancient comments and replies of mine. If you haven't found out already, think of a site that's similar to Facebook, but instead of making "friends" as the big draw, it's all about your neighborhood and surrounding neighborhoods. So it's filled with people asking about where to find "cheap reliable (insert service here like landscaping, drywalling, etc)", suspicious people seen around the place which another commenter mentioned, so given the very white, very Karen-like audience is probably just a notice that some racial minority person was here. Like I mentioned, lost pets are a common post, there was recent 2 different companies going around digging fiber lines for Internet service, and then the predictable "has anyone switched, how do you like it?" type posts that follow.

A lot of these people don't know each other, so their only common ground seems, at least where I am, to be mostly just where they physically live, and the fact that they all love Trump.