If the Graalians want to chat, let them chat! I've played numerous amounts of online RPGs, each one having its own chat room type system. Not everyone chats on it, but the people who want to chat do. Well, anyway, I've created a hypothetical interface for the window:
In the window, I've included the chat field, the send field, and a channel menu. The "channels" I'm talking about are different chat lines that you can talk on. Aside from the main channel, there could be a newbie help channel, a channel for announcements, and a channel for your guild.
You can ignore specific channels by clicking on the check mark by its name. To talk to a specific channel, simply click on it, and the name will turn yellow. Type your message in the send field, and your message will be sent. If you click on the double-box at the top of the channel menu, the menu will hide. click it again, and it will show
Maybe you could even send you message to multiple channels by pressing shift and clicking on the names of the channels you wish to send the message to.
I'm open for ideas, and feel free to edit the interface file and show it here.