FWIW, I think it's a good thing to encourage people to read the design doc. Ignorant knee-jerk responses help no one and waste a lot of time, and we can have a better discussion if participants are better informed. I don't think you were doing the wrong thing, I felt you were doing the right thing poorly. ("FUD" is pretty strong language IMO in this context.)

I really do hope Gross is successful. It does seem like he's "got an angle", so to speak, on the problem. At the very least, he's coming into it well-informed with his eyes open. He wants to try excising the GIL (and FB is apparently footing the bill to boot) so it's stupid to object, eh? Who cares if he wastes his time? He's not hurting anything. And maybe the horse will learn to sing. :)