I've spent some time manually editing the configuration files for the chat room this evening, and have instituted some changes.
The main change is that users can no longer create rooms of their own. This, in conjunction with the naming of permanent moderators for the main room, will halp to keep the chats from getting out of hand.
Registration is now required to use the chat room.
Moderators have been installed, and can "kick" users out of a room as well as "ban" them from the chat entirely.