> One thing that I don't understand is that why is every other article on this > matter saying that "don't look at the code if you ever want to contibute to > OSS"?
Because if what you see in any way influences the software you write, you could be violating patents, copyright, trade secrets. This is bad even if you don't use any code or ideas from the source. If you saw it and didn't use what you saw and wrote something nice, MS would try and prove that you did use their IP. Also any code you wrote resulting from you looking at that information would not be compatible with the GPL or any other free license.
