Can we "improve" on the "Golden Rule"?
The Golden Rule is a general principle unlike the 10 Commandments which are a list of prescribed and proscribed behavior. However, it does not appear in the Bible and is commonly said to mean, "Do unto others as they would do unto you."
Is this a good idea? It puts the individual at the center of the universe. It establishes you as the reference frame.
Wouldn't it be simpler just to say, for example, "Be nice" or "Do good" or "Be good" or "Avoid doing evil"? This leaves the individual with an intuitive understanding of what is good or what is right and wrong or what being nice means but it is not centered around you.