Crazy. I can't stand the software.

Experiment for slack fans: Start talking about something in a channel with ~20 people. Then ask a friend to ask another question in the same channel. What happens? A mess. You now have 2 conversations modeled with a single stream of single-line messages, with no context. One someone starts a conversation in a channel every single other user in that channel now has to wait. (or risk being pushed up past the fold, which people never scroll to)

Chat just isn't how work gets done. Or how knowledge is transferred and, most importantly, retained.