> Microsoft (GitHub) blocks the Tsunami Democràtic to avoid the issues of their 'app'

Is how I'd translate it and depending on who you are, you might just ignore the GitHub bit if you have no idea who that is and just assume Microsoft's doing this outright. It is confusing, but the subtitle specifically calls GitHub a service owned by Microsoft. They then mention since when Microsoft has owned GitHub, which I'm not sure how accurate it is or isn't. Is it wholly owned by Microsoft at this time? Though as others have said, it's an existing policy.