Exactly. It would be trivial to have a "flag" button that after a certain amount of "boy cried wolf" complaints Nextdoor either prevents people from making crime alerts or in some other way throttles them. If this sort of behavior is causing a ton of user churn Nextdoor needs to get something in place ASAP.

It could say something like "5 of your neighbors thing you are complaining too much, but hey, don't shoot the messenger!".

Signal to noise will always be a problem in online communities because of the one to many nature of them.

> Some groups have even actively silenced and banned the few vocal voices of color speaking up on the websites, according to records that I reviewed.

Looks like some kind of process for silencing voices is already present in the app....it's just mostly being used to silence voices that point out not all blacks are criminals.