You couldn't be more wrong. Since Nadella is at the helm, Microsoft have started to aggressively gather customer data from their desktop OS and many other prod

You couldn't be more wrong. Since Nadella is at the helm, Microsoft have started to aggressively gather customer data from their desktop OS and many other products, including office. They used to be very decent at this before Windows 10, but they went completely nuts with telemetry. At the beginning they were completely opaque, to the point that a German gov agency had to reverse engineer the communications to see just wtf was being transmitted. More recently the Dutch gov told them to fuck off if they don't cut off the crap and MS was forced to negotiate new privacy terms with them. Anything they have already and will open source pales in comparison to the harms to our privacy, just like for Google. Although Google at least open sources some useful things now and then... .NET is Microsoft's dev platform that no one cares about except Windows devs. It started as a JVM/Java clone and grew into its own product, but for anyone not already all-in on MS tools it makes zero sense to use it when there's so much choice.