It won't be obvious that everyone will go for 1 point even if it would ensure going to the next round. Getting the 500 point bonus for highest bid will be valuable at the later stages of the game when there's less players and everyone has less points left.
Anyways, i also think that it's not a very good rule and just lenghtens the game unnecessarily.
(hide) If you want to save on bandwidth you can reduce the amount of information that shows up in your pages in the Settings. Try changing the number of games in the main page and the number of messages per page. (pauloaguia) (show all tips)