No, it's not a feature. It's a massive problem. 1) Pumps that can pump water 150 meters or a kilometer high are very expensive and require constant expensive m

No, it's not a feature. It's a massive problem. 1) Pumps that can pump water 150 meters or a kilometer high are very expensive and require constant expensive maintenance. 2) Where will you pump the water to? Now you have to build huge storage tanks. 3) The water never stops flowing in. Sooner or later you will run out of storage space and your expensive hole will fill up with water.