Sure those could certainly be exacerbating factors. I'm a pretty private person so I'll just say the area is majority white and and a high median income area.

I guess my question is how do you weigh good outcome areas generating positive outcomes from using the platform vs. lower performing outcome areas generating negative outcomes (e.g. mentally-challenged skateboarder) in their area.

The platform isn't generating the content of the area. The content is just a reflection of the users in the geographical area.

The platform is fine. Like any social media, it amplifies existing biases that the population it serves already has.

But the specific issue with Next-door is that by design it serves a very limited population, so if that small population has any sort of bias, it is massively amplified.

Ok so what is your solution to this problem?

Make posts visible only to those within 2 blocks, or around 150 households who are close neighbors. Why 150 and not 1500 or 15000? Dunbar's number. https://en.m.wikipedia.org/wiki/Dunbar%27s_number

Nextdoor needs to do a better job of monitoring their moderators.

Okay so if Nextdoor serves content to local communities which have cultural norms varying from the bay area to so called fly over states how should they monitor their moderators?

If this is such an issue for you please describe how you think a platform which you describe as "fine." should moderate posts across a country as diverse as the US?