Would that not just mean players committing offences with no threat of points being lost or yellow cards, A cheats charter.....?
Let's face it the way rules are reffed nowadays means the whole game is a cheats charter - as it has always been! (the scrum feed, the dark arts of the front row, the breakdown...)
My main concern is that the scrum results in too many penalties.
I cannot see why a completely dominant scrum should be awarded a penalty everytime they push the opposition back. They should be made to play the ball (after all isn't a scrum supposed to be a way of restarting?), or if unable to play the ball a free kick or tap and go.
If players continue to commit offences the ref can, as they do now, warn that further offences can lead to cards being issued.