Entertainment business (Or maybe even straight business) - Whether it be about movie, music, wrestling, comics, football, etc. Place to talk about the "boring" stuff, such as networking, contracts, advice, etc. A place not to talk about the screenplay, but more about what to do with it after you write it. Curtis or one of the other cats might be able to think of a better way to put it. I'd say the emphasis would be more on the business aspect.
If you go for it, it might be wise to have 2 additional rules...
1.) No solicitations of any kind. Any solicitation in that section will be deleted. (Translated: No posting "HEY REGGIE!!! I'VE GOT THIS SCREENPLAY I WANT YOU TO READ...")
2.) It IS okay to announce upcoming/current projects... like Redjack's Red Line or that Tyler Perry movie with our own DJ Mastyrmnd.
Just an idea.