[damezumari]

You can see people on Slack channels too, and their presence status if enabled. That said, I wouldn't count on that, as I leave one client always open and in non-away state just to seem that I care about my work.

That said, most horrible part about Slack is how more and more closed it is becoming; when there was XMPP bridge you could at least use some non-shitty client (hello, Electron) to interact with it.