On the one had, I think MS gets a worse rep than it deserves for supporting or not supporting OSS. It doesn't do a lot to DIRECTLY support folks who write OSS software but I see that changing a lot - especially in the last couple years. Slowly but surely they've been turning the ship to try and be more open and developer friendly. Legal issues and middle management seem to hinder things the most. A lot of the smart people there are constantly stymied when legal issues stop them from otherwise good ideas or directly supporting an OSS project that may compete with a commercial MS project.
There is too much groundswell for this not to change, and soon. I think folks like Glenn B are forging ahead with projects that will ultimately be the norm for Microsoft in a lot of ways. As soon as they can get he legal framework figured out, hopefully we'll see more direct support for OSS projects. Maybe an OSS MVP? That seems like a no brainer to me.
And for what it's worth, you do amazing work on NEST and a lot of people, including myself, appreciate it. I've been terribly negligent in giving back to that project. I'm going to have my employer let me spend a little time on helping with docs. Hopefully soon.
@jptoto concerning helping out with the docs: AWESOME!. The documentation can use some serious TLC. I keep on pestering @kimchy for nest.elasticsearch.org during the ES meetups here in holland so they better be complete if it ever makes it on there :D