I thinks it's a great idea to have more than one person handeling it. I can do it in the evenings and at night (usually posting late at night and early in the am (4-6 am) but as you said, any one can post on there.
If you want, maybe Sandman and I can keep an eye on it so it doesn't get crowed or screwed up and just let whoever has an event post it up
Hows that?