There's something really strange happening here. It looks like a few days ago someone anonymously edited the wikipedia page to add a designer and claim it's open source, linking to the Github page that was just created a few minutes before:
Looking at the Wikipedia page, as well as the conversations given in the proof: "Consolas used to have bad copyright but I made it open source!" and "Consolas now has twice the amount of designers it used to have.", it does look like some sort of twisted joke. My bad for this, we still have to hear from Microsoft but I don't think this is legit.