[biesnecker]

There's only a few centimeters of snow per year at the pole, it's a high desert, and digging the ice out is probably not worth the energy?

[InitialLastName]

The same blog has a post referring to snow accumulation (evidently wind-blown, not precipitated) requiring enormous operations and infrastructural efforts to keep the station from being buried [0].

There seems to be plenty of snow available, if you want to melt it. Energy is the issue.

[0] https://brr.fyi/posts/south-pole-topography