Nextdoor CEO Sarah Friar.
Christopher Goodney—Bloomberg/Getty Images

In response to criticism that it was failing to curb racist content, neighborhood social networking platform Nextdoor and CEO Sarah Friar last year launched a system that scans posts for red flags and encourages users to reconsider before publishing something problematic. The feature builds upon Nextdoor’s Kindness Reminder feature, which similarly nudges users if it detects negative language or other signs of a heated conversation. Nextdoor says people shown such prompts edit or withhold their content about a third of the time, making them a promising solution for any social media company struggling with toxicity.

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