Yeah, as far as I can gather the only thing MS did wrong here is not explicitly crediting the project they forked the code from, and I don't get the impression the author would find adding that one sentence to the docs to be adequate redress. I don't get why you would take personal offense at a big company forking your code so they can mold it to their purposes - the license allows that. Now whether that's the right way for a "friend of the OSS community" to behave is a different question entirely, but anyone who ever bought that horseshit from them has had their head in the sand.