I trust Microsoft precisely as far as I can through their Corporate HQ. I approve of their corporate practices about as much as I approve of slave trade, since both business practices require massive blatant exploitation of people who are seen as valueless to the people in charge. I feel that the company is a canker sore on the technological industry by using code so horribly layered, by actually RELYING on coding bugs and errors to make the OS function as intended, and by leveraging their enormous pull to block attempts to use any other OS in the end-user environment.
If they buy Mojang, I walk. Flat out.
The $2B dollar tag for Mojang itself tells me that they're wanting more than just minecraft, they're wanting the IP and possibly the programmers. Which means they've got a project in mind using the skills and/or IP that is currently the property of Mojang. Which terrifies me.
Have you looked at Apple lately?