First they took away the outfit rewards. They said the rewards had changed, that we'd have to participate to find out. The only thing that changed was their removal of the outfits. They didn't bother announcing on their Facebook page when the newest challenge started. They didn't give us anything new with the final rewards. All I got were the same old gold star animals. A Himalayan bear, a Japanese macaque, and a giant panda. Nothing special about them. I checked their stats, nothing different there from the previous rewards. They just don't want to be bothered anymore with setting up rewards. Therefore, I can only guess that they've given up on the challenges entirely. They'll keep them going, but nothing all that great will come from them. I could have gotten these animals for less cc than I spent for the challenge.