I don't know on windows, but it certainly holds true across the fence in linuxland. So much even, that the kernel team implemented a feature specifically so th

I don't know on windows, but it certainly holds true across the fence in linuxland. So much even, that the kernel team implemented a feature specifically so they wouldn't have to deal with crash reports from people who run binary drivers. (Kernel tainting) It's an issue of lack of economic incentive: Few users even know to attribute crashes to drivers; when the os goes down, they blame the os. The driver writers work at the driver until it reliably works for them, then ship it and forget about it. Demanding for all our drivers to be gpl seems to be a working solution.