[titanomachy]

Have you tried using your IRC client to access Slack? I've heard it's supported, but I don't know anyone who uses it.

[stealthascope]

I use it with an IRC client. There are some things I take issue with (mainly stripping out IRC color control characters), but it works really nicely as a client. I use Irssi so if I need to ignore it, I can tuck it nicely away in a screen session somewhere and put my focus elsewhere.

[benjiweber]

I use it with irssi. I wouldn't use the official slack client, it's terrible at so many things - notifications, switching windows, multiple accounts. But as a hosted IRC it works really well.