I'd like to propose a (paid) feature which lets you select a region by Center/Radius and then shows you how many ...
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... needs maintaince
have been logged within a specified timeframe.
It would also be interesting to see how many caches of each type are there within this region.
It would also be very interesting to see how many cachers have been active in this region and from where they came from (only roughly by distance from home location).