Microsoft never made any change to its core strategy. There is no alternative platform to run Windows applications with official Microsoft support (you can name a couple exceptions, they are exceptions, e.g. SQL Server), there is no way for average developers to read Windows/Office source code. That is the best proof.

Windows for Linux Nerds? I run 5 Linux machines in my study room, Microsoft would be charging me thousands of $ for Windows Server licenses, I read source code of the software I am using on daily basis, Microsoft wouldn't let me do that. Every code of weeks, I hack the software I use and share the changes with others, Microsoft lawyers are not going to be happy if I choose to do that on Microsoft software.

Windows for Linux Nerds? Microsoft is not ready for that, Microsoft never had the intention to do.