You will find lots of such examples of a feature which you personally find very important and wonder why such a simple thing is not supported yet. I guess everyone has such examples. And you will also find such examples for MacOSX or Windows. For me personally, I wonder why mouse wheel/scroll acceleration is still not implemented. I implemented it a while ago for Xorg, which is outdated now, and also the maintainer w…
There's a quote that I think of in situations like this: "Be the change you want to see in the world" - ghandi That said, you can't do that with windows or macosx. Now capitalism works, so apple and microsoft apply the money they make to hard/unsexy things like sleep-wake bug fixes and APIs and sane defaults. But they also bake advertising into their codebase and leech data home to the mothership and prevent you from…
I'm not as sure with Macs (and the surrounding culture isn't really eager on such things anyway), but there's a long history of people modding Windows in various ways, that goes back to the DOS days. Of course your customisation is highly unlikely to make it back to MS, but things like WindowBlinds were extremely popular.