Nextdoor doesn't make people be shitty human beings, but it is a local forum that augments or replaces the sorts of venues that people used to be shitty in -- town hall meetings, HOA events, neighborhood watch, political rallies, etc.
Arguing with people on the internet is (heh) usually a waste of time. But pushing for decency and respect within your neighborhood is not a waste of time if you value strong communities.
That's a misguided instinct when the people you are talking to live two doors down. Get a handful of people who see them everyday to say, "knock it off", and they usually will.
Years ago, I had a couple of neighbors I'd talk to, but they all moved away. Had a few friends I talked into moving to my complex too, but they've all moved away as well.
The moderator problem is real, and I don't have an answer. Maybe Nextdoor needs to review the behavior of moderators and have a replacement policy when they're misbehaving.
http://www.sfgate.com/bayarea/article/Dirty-secret-of-black-...
Who would you expose here, exactly?
Those options are not mutually exclusive; its quite possible for their to exist Black racists that target attacks against Asians and Asian racists that profile Blacks, motivated (or rationalized) by the fact that some Blacks have engaged in racist attacks against Asians.
Also, I remember a friend of mine talking about how people on a Facebook page for her neighborhood went crazy... death threats were made over posts there, and police were called.
Some gems in recent memory:
1. Someone posted an urgent 'BOLO black men with what appears to be a weapon or something to be used to break in to houses' accompanied by a picture of a man with a rake. Another neighbor commented, "That's my landscaper and he's been my landscaper for 10 years".
2. A heated debate over tearing down old houses and replacing them with bigger ones ended up with a guy crawling into someone's backyard, taking pictures of their house, and posting them and critiquing their design choices on the forum.
3. A neighbor created a small sculpture of stacked stones, each stone being about fist-sized. Another neighbor posted photographs and personal information, asking that he take the stones down, because if they fell on a kid, he would sue him.
4. Multiple occurrences where someone posted 'surveillance' video of dog poop not being cleaned up, which always resulted in another neighbor identifying the dog owner, and the dog owner almost always being an elderly woman, who embarrassingly had to indicate she ran out of poop bags but went back later to clean it up.