A side product of my current work on the Vialogues data mining research is the statistical summary of Vialogue discussions. I'm sharing the stats here as many of you may find it interesting.
There are totally 1,457 Vialogues with 16,821 comments in total by 3:38 PM, January 19, 2012. Averagely each Vialogue has 11.54 comments. The highest total of comments in a single Vialogue is 214.