So eventually, with this bad publicity, they will add the copyright notice, and move on with whatever else they are doing, in full compliance.
I don't think Microsoft removed the copyright notice. I think that the original author did not add one...
The license doesn't have to be in each file. It's a license for the software. A software is a thing.
> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files
> ...
> The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
If you pick a corporate charity license, don't act surprise when corporations take the charity!
Cloud providers have long taken hard work of open-source projects and packaged it up to be a web administered solution.
There is something to be said for putting together an experience. Including that it wouldn't be possible without everything it does.