oh yeah, one more thought, to complete any other thoughts
an enemy robot IN YOUR SCORE ZONE, whether it is holding 1 container 10 units high or holding a stack of 10 containers, will not effect your score.
This was mentioned in update #3 if I'm not mistaken.
Again, there are absolutely no subtractions, the only thing your opponent can do is knock down your stack, which would be hard considering they probably won't be able to see their bot on the other side :eg:
Ok, I was wrong. an enemy robot
CAN add points to your score, but not subtract, think of them adding bins to your multiplier stack or such.
But the only way they can knock down your score is by knocking down your stacks, which still won't subtract anything as long as your bins are not pushed outside the score zone, then those just don't count at all