Earlier quoted context omitted.
As someone with no real stake in this deal, why should anyone care whether Microsoft kills Github or not? There are multiple alternative Git hosting competitors and switching costs are low.
I don't care if they kill Github. It's the reverse. I'm worried that they will be successful. My main concern (having spent about a decade working in MS shops) is that they will try to create a divide between "professional" developers and "hobbyist" developers. Microsoft's fear has always been that their next major competitor will be someone who comes out of their garage. They have always tried to control the program…
A really great example of this is the fact that they now give away Visual Studio Professional (rebranded to 'community') for free and even allow unrestricted commercial development/usage for independent studios. I don't recall their definition of independent precisely, but it's something like <= 4 developers, with gross revenue < $1 million/year - the exact definition is similarly fair.