The problem with your just simply build your own open source competitor theory, aside from being a glib response, is that you are quite likely to be violating a

The problem with your just simply build your own open source competitor theory, aside from being a glib response, is that you are quite likely to be violating a patent Microsoft or someone else holds when you build said system. Complaining about downvoting is itself noise, which will generally only get you downvoted further.