I'm pretty sure that declaring https://github.com/s-macke/FSHistory/tree/master/data to be MIT-licensed does not actually make it so... (these are disk images of the relevant FS releases, which are still under copyright as well as provided under a proprietary MIT-incompatible license)

TL;DR: A Microsoft contractor basically endorsed piracy, in a weirdly-recursive-enough-to-be-legal way...