Shivas has mentioned the phrase on a few occassions.
I've never understood why a golfer is prohibited from using an aid to assist him with the line of play, such as laying a club down to help him position his feet and to align his swing, but, if that's so, what is the reasoning for allowing a golfer to use an outside influence, a marker to to circle the ball such that it can be used as an aid to help the golfer position and align himself ?
Do cheater lines thwart the intended challenge of the putting surfaces.
And, if more and more putting surfaces are flattened to accomodate increased speeds, will these markings have even more influence on aligning the golfer ?