I agree that the memorability of an address is important. One thing I would argue with is that you would not use something like a geo-hash to describe a shape.

I agree that the memorability of an address is important. One thing I would argue with is that you would not use something like a geo-hash to describe a shape. You would use the centroid, or some geographically relevant part of the shape to describe the location (point) of the place.