Microsoft's Just Acquired Github - The Future of Open Source?

According to many technology news websites, Microsoft has just acquired Github, "[t]he world's leading software development platform". What will this acquision mean for open source enthusiast?

Tech Crunch:
(source: https://techcrunch.com/2018/06/04/microsoft-has-acquired-github-for-7-5b-in-microsoft-stock/?sr_share=facebook&utm_source=tcfbpage&guccounter=1)

"While GitHub is home to more than just open source software, if such a migration came to pass, it would be a very bad look both for GitHub and Microsoft. And, it would a particularly ironic turn, given the very origins of Git: the versioning control system was created by Linus Torvalds in 2005 when he was working on development of the Linux kernel, in part as a response to a previous system, BitKeeper, changing its terms away from being free to use."