The problem is the system hasn't accounted for ways in which the system cam be gamed. .That's all it is. THAT is what need to be fixed and that is a developer problem that needs to be tackled. The same problem is also found in the censorship potential that comes with someones powerful flagging vote. It has just as many problems associated with that and will only get worse the more market share Steemit attempts to take from services/platforms like reddit and Youtube. It needs to be solved in the same sort of way Bitcoin solved the problem of trust, in that it didn't matter how much someone wanted to screw you they couldn't.