Twitter says it's making progress battling abusive behavior

"Twitter's renewed focus on harassment is a "completely different mindset" from several years ago, said Danielle Citron, a University of Maryland law professor who studies hate on the internet. Back then, unchecked mobs led to hate campaigns, such as in the 2014 attacks against video game critics that came to be known as #GamerGate. Now Citron is part of Twitter's Trust and Safety Council, a group of more than 60 organizations and experts working to prevent abuse and hateful rhetoric."