adora

yeah i deleted my post because they keep changing their minds.
its retroactive (for now) in the sense that they started counting from before, just only billing for new ones.

deleted by creator

It’s very possible they weren’t unused.
Docker builds their images out of layers, and all the layers are used during runtime!:
https://sweetcode.io/understanding-docker-image-layers/

The idea is that you can essentially change PARTS of an image, without rebuilding it entirely, which saves space and bandwidth.

thats awesome!