Damn. I always miss the obvious - fair point about the multiple accounts.
I guess the most obvious way to solve that is through verification.... not gonna happen is it!
At least a max reward would be symbolic and make abuse slightly more of a hassle.
Good point, verification is the solution however people will go against it because of claim of decentralisation and uncensorship...people will always have a reason to keep their greed.However strong will is needed ie do some unpopular things for future gains