This week Slack announced that it has removed more than two dozen accounts linked to known hate groups from its platform. “The use of Slack by hate groups runs counter to everything we believe in at Slack and is not welcome on our platform,” Slack said on its website. Facebook, Twitter and other social media platforms have increasingly been used to spread bigoted ideologies and highlight violence that Slack wants no part of. A survey from the Anti-Defamation League showed that 2018 was a record year for online hate and harassment. It seems that 2019 will not be reversing the course despite platform’s removal of such groups. The survey did not name Slack as an online location where users experienced hate speech — this could be because the platform is mostly used in professional environments where the behaviors would be punished externally. Facebook has done mass removals of groups, ads, and pages associated with hate groups over the past few months.  Following its policy updates...