Pro: Posts like this get large numbers of upvotes, indicating that people want to see more of them.

Con: As SarahC points out below, however, when people start posting their opinions (which they will) things get ugly.

I'm somewhat on the fence, in that I (like many others) am insatiably curious about what would come out of such discussions, and believe that in the end either I or many other people will have a large number of incorrect beliefs rectified. On the other hand, I do not know if the community would recognizably survive such a discussion, so for now I'd say it's best to wait.