There was a discussion on SailNet some time ago about too over categorization. I believe the consensus was to consolidate a number of the less active sub-fora. If you look at the complete (I think) list of Destinations here you will see the traffic various areas draw. Chesapeake Bay and Massachusetts Bay dominate the Destination traffic.
For Lake St Clair, you can post right here in the overall Great Lakes forum ( http://www.sailnet.com/forums/great-lakes/ ). Given the total traffic you could make a case for deleting the separate sub-fora for the individual Great Lakes. Maybe such consolidation would draw more traffic through synergy.