I'm just curious how many people still use IRC (Internet Relay Chat) here. And if you use it, what do you use it for? Is there anything (server/channels, etc) that you would recommend to others?

I use it a bit, mostly for casual chatting on tildeverse.org servers, the SDF server, or on Freenode. On Freenode, I also use it when I need to interact with FOSS developers who use IRC as one of their main forms of support.