Any info I would want to share with fellow examiners would be regarding the performance of an individual candidate on test. To be honest not something that should be aired on here. In anycase, my decision making process for this kind of thing is based on playing to the "spirit" of the rules and gut feeling. Thats personal.
However, any questions I would share with one and all are just regarding the bloody rules and regs and what has changed recently and how to understand these half baked forms the CAA print with numerous errors and contradictions. This sort of stuff is aired already in this forum.
So to my mind great idea but not really useful to me.