I was pressured into signing up for NextDoor in order to participate in a local civic function. The whole experience felt very sketchy (ironic because a lot of the my neighborhood is people complaining about 'shady' characters). They had a slew of dark patterns in their sign up to try to get me to give out email addresses of friends so that they could be spammed with signup emails. The network is fine, but having public civic functions existing behind a closed wall owned by a private company is a really bad idea. Using Craigslist would be way less sketchy.