Because I know that @evanhamilton joined to see chat in action, I thought I’d elaborate a little on how others use it. As well as using chat as we are here, you can have a chat channel per category or use it as a fully fledged Slack like alternative.
We will be launching sidebar in mid-Sept which will allow for a setup similar to the one below (which is our internal Discourse instance).
We use it for ephemeral communication alongside our general forum, plus we use it for alerts from monitoring tools, incident handling, bot posts (e.g. that the build has broken) among other things.