Data centers, the things that physically store and share applications and data, require an enormous amount of energy to run. These giant storage units, responsible for 1-1.5% of global electricity consumption, have traditionally relied on renewable sources like solar and wind but it seems as though renewable energy just won’t be able to keep up with the demand required moving forward.
Backward compatibility issues I would imagine. When your codebase is that large and ubiquitous, it’s hard to make the tiniest change without breaking shit.
And every time MS does change* something, resulting in breaking updates: “SEE! M$ sucks!”