We sent our user research team out to sit with customers for periods of time and get some insight into how Slack is working. We also get tens of thousands of points of contact via Twitter and our customer support ticketing system every month and can synthesize those results.

I remember working with a guy named Andrew Braccia at Yahoo, and Yahoo was the company that bought Flickr. Everyone on his team was hard working and reliable, did what they said they were going to do, on top of everything, and seemed to be operating at this level of productivity and effectiveness that I found difficult to manage to.

Internally, we sometimes say Slack is like a nervous system, connective tissue, or the internal network.

Stewart Butterfield Quotes