September 20th marks the third year anniversary of Natty, which is a chat based robot that detects non-answers posted as answers. Built by a team called SOBotics, which consists of members from the Stack Overflow community, Natty has helped detect more than 150k non-answers, all of which can be seen on the dashboard, Sentinel.
Read more: https://stackoverflow.blog/2019/09/17/meet-the-bots-that-help-moderate-stack-overflow/