Hm. For whatever reason, this one isn't working for me in Chatzilla. Even though my user mode is +wx instead of +i (all I really know about user modes is that +i is invisible), no usernames are showing up in the user bar, not even mine. I would think it's a problem with the user mode, but it's automatically switched to +wx when I join the channel.
So, unless this is a problem with my user mode, I guess I get to wait until #Shrinemaiden is back. Oh well.
Edit: So, out of curiosity, I tried entering a message despite the apparent lack of other people. This is the message I received:
"Please do not just type into this tab, use an actual command instead."
So, you have to use a command to actually talk to people? i find that odd.