The majority of the policies that our Game Masters follow are internal and not for public consumption.
Otherwise, an outline of the basics can be found here:
Not to sound flippant, Ziimm, but we have the ability to grant you 5 billion gold, all the best armor, pets and mounts too. Part of the game, especially WoW Classic, is making those meaningful decisions and living with the consequences of your actions. I’m sorry that you accidentally abandoned your pet, truly, but it is not an irreversible mistake. You can tame the pet again and hopefully not make the same mistake a second time.