<p>It doesnt work like this.If you are astute enough to eliminate 3 answer choices and it is a 50-50 guess ,I dont see why this should be considered wrong.If you answer incorrectly ,you will lose 0.25 points just like every dolt who didnt even read the passage .
On the other hand ,it is impossible to get a 2100 if you guess all the time.The probabilty that you will answer a question correctly is 1/5 ,the probabilty you will answer about 140 MQ correctly for a 2100 is like (1/5)^140 Is this possible ?I dont think so.
SO,this guessing penalty turns out to impede the high scorers</p>