Since I built CuttingEdge.Conditions, I had lots of positive reactions from developers who loved it. However, I've never saw the source code been reused in another library or framework; until now.
I just stumbled upon an exact copy of the CuttingEdge.Conditions source code inside the MongoDB .NET Driver. I am absolutely fine with this. I deliberately choose the MIT license which permits reuse of the code in any form. Reuse of my code is the biggest compliment a developer can give me, except of course compliments that involve money :-).