I just think the GB web chat will get swamped by journos and others with an axe to grind. Nothing wrong with newbies and non members taking a peek and lurking. It is for everyone to see.
MNers are a wide and diverse community, but I am concerned that others will take over.
I know this is probably a very non-Mumsnet sentiment, and I hate cliquiness, but it is only for two hours.
Just flame me if I am being silly. Go on, you have done it before and I can take it