You can join the
#disc0rd channel on the Liao IRC network either through the web client in your browser (easiest), or with a traditional client.
If you want to use a non-web IRC client (HexChat is good), join
irc.liao.ws (traditional connection string:
That's all that's required.
There used to be a Discord, but Discord is gay and I hate being one of those sites that shouts about its Discord circlejerk instead of focusing on the site itself.