I think the ease of use of a centralized hot spot map is better, BUT I think the accuracy of local hot spot maps will be higher. Locals should typically post local spots, as they are the most up to date and more intimate with the areas. While the division doesn't necessary prevent "outsiders" from posting on local maps, the fact they are separated should help. My vote would be to keep going with the community listings in each state, and have local hot spot maps that go with each community listing.