A Pokémon ShinyGold fan, eh? Yeah... I remember that FireRed hack that never got finished. In any other cases... there's Liquid Crystal that has managed to be similar but different at the same time.
The user that was on PokéCommunity, which his username was "Zel" left and was no longer to be seen again. No one knows what happened to him. I mainly focus on hacking Pokémon Black/White, or at least learning how to.