You are having a wrong assumption. The user is at the 4th rank in the top affiliates list since so long with that statistics. He isn't a hacker. Who said that everyone lost their referrals? Most probably his referrals are known to him in real life. And he promised them to share the commission with them. The user has shared 70% of his commission with his referrals. You can also get some sweet commission by having a big whale as your referral.