The chatroom itself may be moved if it is in your way when you are viewing the site.
You can also toggle the 'user box' to hidden/or visible by clicking the icon in the lower right corner so it does not obstruct your view.
You'll need to register for an account, but no email address is required.
In addition to being able to chat, it is also an IM program.
So stop reading and start chatting, time is precious you never get it back when you loose it.