I believe the prizes from freebitcoin are really real just like the lambo prizes, it's just that we haven't been lucky enough to get big prizes from WOF because I think maybe there's very little chance of getting big prizes, so I always say in my heart "Try Again Later"
Freebitcoin has tens of millions of users who have registered so far if there is 10% active it means there are millions and maybe someone has ever gotten a big prize from WoF apart from what forum members usually get, namely 5K RP Satoshi or Lottery tickets. The biggest rewards I ever got was 5 GT it was about 0.00125 BTC only got a small chance for lambo