It does not matter what one thinks of the reputation score, the simple fact is a higher reputation score is what has the most effect on lowering a users reputation score, thus always ensuring those with higher reputation scores no matter how received will always be able to destroy an account if they see fit.

I am seriously hoping that blocktrades can come up with a different system, for now though Reputation whether you want to ignore it or not is what controls how much damage is done to an account.

A lower reputation score will never be able to effect the higher reputation score.