If you read my post again, I said, use conditional orders -- these are not visible to most MMs until a near range target is activated. In other words, those Conditional orders based on limits are not visible until your target is nearly there. Not perfect, but a useful tool if one has a day or two when one cannot be watching the action every 5 minutes.
I am well aware the abuses that occur if buy or sell orders are visible to anyone. That is true enough! Indeed.