IRC is a chat service provided by freenode and many other networks around the world. Kongregate Wiki has an IRC channel on the freenode network, called #wikia-kongregate. You can access this channel via the window below.
You can log in with any nickname, without the need for creating a password. If you'd like to prevent others from using your nickname, you can register it by logging in, then typing /ns register password email@example.com. You must then answer a confirmation email sent to the address you specified. Once this is complete, you can use the "auth to services" checkbox. You can use as many nicknames as you want, and you can switch between them with /nick.
The chat is moderated by the admins here. If you see something that requires admin attention, enter the name of the admin.