This is awesome! According to the game’s developers, Gabe Newell contacted them to say the following:
“Yesterday I heard that we were taking Hatred down from Greenlight. Since I wasn’t up to speed, I asked around internally to find out why we had done that. It turns out that it wasn’t a good decision, and we’ll be putting Hatred back up. My apologies to you and your team. Steam is about creating tools for content creators and customers.” – Gabe Newell
It seems that Gabe is a cool guy! See the Greenlight page in here.