Slack got introduced during the most recent space hunt and move. We needed a way of communicating where we could share files and send push notifications to people that were not online. That combined with the integration in to http://vancouver.craigslist.ca/, and http://spacelist.ca/ for pushing ads to us made it an obvious choice.
We intended to shut down slack after we were done with the move, and migrate back to IRC. But our experience with Slack has been exceptional, its a really good service. It does most things we need much better than IRC. Its great for committees, sub groups, and ongoing projects.
One of the only drawbacks that we have found so far is the inability to allow guests to visit the VHS slack install without being explicitly invited. On IRC, users could join and leave anytime they wanted and the OPs could ban them if they became a problem. With slack you have to be invited by an admin.
You have a option to join the Slack if you want.
Its not a requirement (like we could make you do anything) and we are not shutting down the IRC channel (The internet doesn’t work that way – @TyIsI)
Questions, Comments, Suggestions?