One idea to help build community is to create a map of member's residences. I imagine a map of the 50 states with the number of members in each state, clickable to show the list of names in each state. For western states, clicking on the state would also show a detail of the county map, with the number of members in each county, each county then clickable to show the names.
John might script so that whenever anyone logs a new peak, they are prompted to select their state and county of residence.
This could be combined with the team concept, putting members in the same area on a team - e.g. Boulder, Jefferson1, Jefferson, 2, Adams-Weld-Larimer, etc.
Just a couple thoughts that came to me climbing Mt Hope in foul weather this morning!