Greg,
Is it possible to have a pop up message that says, "hey dickhead you forgot to login so would you like to do so now," just as you post a message.
It's a PITA when after typing away you suddenly remember that you're not logged on and then you have to go back out to the main page to do so.
I always seem to loose my message when I do that
I've seen this done on similar sites but would it preclude guests from posting