> The tone I was getting from OP (the Twitter discussion) was that the code taken was something Microsoft did not have any right to use in the way they did, not something that could be solved by attribution.

> "If they are going to steal code without crediting the original author" which, to me, initially read as saying it's still stealing even if it was credited.

Attribution alone doesn't bring it into compliance. The copyright notices have to be preserved too.

Also, the rewriting of commit history, if true, sounds more shady than mere "Oops, I dropped the license and copyright texts".