I think flagging could be better scaled if the influence level of the account flagging was taken into account as well as the proportion of upvotes to down votes. This way a post with a lot of community support even from small accounts couldn't be hurt as much by one whale. The algorithm could also greatly limit the upvote influence value of accounts with less than 20 SP so it would be harder to game the system by someone who controls hundreds of accounts with little or no SP.