> My impression is that most Slack instances are highly private and most users are explicitly invited. Not exactly true in companies, where you're subject to t

> My impression is that most Slack instances are highly private and most users are explicitly invited. Not exactly true in companies, where you're subject to the whims of HR department eventually, maybe, probably not deciding to fire someone abusive. In the mean time you're subject to abuse over and over again. Great you get lots of evidence to give HR, but in the mean time you're still subject to the abuse and taking the toll on your mental health. Outside of a work environment, you're also subject to whatever delays the admins of your more private slack space might have around resolving the problem. Not everyone is going to be 24x7 to jump in and deal with abusive behaviour and kick people out. The lack of blocking in Slack has been repeatedly called out by people who have been on the receiving end of abuse in slack, through both work and community slacks, and have had to deal with either major delays, or flat out refusal to deal, from the relevant authorities for the workspaces.