Used to be an Microsoft 3rd Level Support dude, in a past life. That ended at Win2008. Always loved networking, which was also required for my past career.
These days I am a Linux enthusiast, still learning and hoping to replace my old Windows skills with Linux. Long road ahead but hoping to get there in a year or 2.
I also love Operating Systems, and technology in general. What better way to learn new stuff than to join StackExchange. I also lurk about on Debian IRC in an effort to learn more.