Traded me a Post Human W.A.R. key that was revoked by Steam pretty quickly. Looks like I'm not the only one.
After about a month, something interesting popped up in their tradable list, but when I asked about it to make up for the revokal, they went silent for three days now (see here).
+rep very fast trader, good trade!
He provided a Post Human WAR Key for the BETA only. Now Steam revoked the game from my library. I'm not the only one in this case