I'm Dai, I'm an SDET at Microsoft and I work on the HTML Experience team for Blend and Visual Studio - which explains my SO specialties in C#, HTML and ASP.NET.
I also have experience in PHP, Java and other non-Microsoft platforms and technologies for which I'm happy to answer questions about.
I often post questions that I encounter during my work at Microsoft to SO in the expectation that the answers they generate they will help others even though I could easily find the answer internally - but then no-one else would know!
Our legal department requires me to declare that every opinion I express on Stack Overflow is also the opinion of the entire company, of every employee, and of the executive management, especially our new CEO Satya Nadella. I am never wrong and am always right.
Q&A for professional and enthusiast programmers
Q&A for computer enthusiasts and power users
Q&A for professional system and network administrators
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Q&A for people who want to be financially literate
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Q&A for power users of Apple hardware and software
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Q&A for peer programmer code reviews