“The likes and shares earned by expressions of online outrage teach users to post more angry sentiments, a Yale University study out Friday shows. Social media amplification of moral outrage can play a crucial role in spreading misinformation or political polarization. Yale researchers measured expressions of moral outrage on Twitter studying real-life controversial events, such as the nomination of Brett Kavanaugh to the Supreme Court, using machine learning to develop a classifier that could label some 12 million tweets. They also studied subjects in a simulated Twitter experiment designed to test whether algorithms, which reward users for posting popular content, encourage expressions of outrage” – Axios.