glad you like it. I agree with your comments about the separate cache, and I will add this to the conclusion. I think the Edwards article makes reference to this issue of preserving them. Of course, the FOI has implications for this.
BTW, I hope you dont mind if I use your earlier comments about the role of the designer in another paper for the same conference....
Equally, I agree that peer reviewing of messages is a great idea - but not sure I would want this on a government-run forum as it could raise its own set of issues - more appropriate for community style sites.