I don't necessarily think Slack is worth $16B any time soon, but I actually do feel like my searchable Slack history stretching back ~5 years is one of the most valuable resources I have at my fingertips on a dailt basis. The search quickly pulls up stuff from years ago even stuff from before we changed the subdomain for the org.
Before Slack, that history might have been contained in email. Which has always been available and goes back decades in my case. Slack worries me in the sense that when it’s gone so is my data, but email I’ve always got my copy.
"Might". There's a lot slack channels that I'm somewhat privy to, but otherwise would be out of the loop on if it were an e-mail. It gives me access to a lot of institutional knowledge in my organization.