Just so we're all clear:
The public graph is the aggregate graph that gets exported and linked from our home page. It's a stacked graph where everyone's piece is the same green color, partially for simplicity but mostly to obscure the details.
The graph Frank posted is a similar stacked graph, but I've broken the traffic out a little (also its ingress vs egress as a way of checking accuracy.) This graph and the more detailed weathermap are password protected, although admittedly the password is not particularly robust.
As Steve mentioned over the course of a couple UG meetings we'd decided that members should be able to see the exchange's traffic patterns, as they say sunlight can cure a great many things.