I just don't understand why a company would take all its most important information and just punch it all up into a third party web site. Somebody could buy Slack, change the user agreement, and sell everybody's treasured secrets. It could be hacked. Subtle changes could be introduced ahead of a law suit. When (not IF) this happens I hope we don't have to hear a bunch of whining from users on this site who never saw it coming.

It's one of the most baffling things to me about modern corporate IT practices.