Official ban lists are both inefficient and prone to corruption in the name of profit. They don’t take into account all of the new cards that will be released during their time and what their impact on the metagame will be, and in fact are incentivised not to do so, to make players want to buy the newly broken cards that won’t be hit until the next list.
In addition, the understanding of the game by both players and the company has greatly increased, leading to some of the old practices for banning/limiting/semi-limiting cards being seen as archaic.
All of this leads to what this format is: A hindsight look at the old form of Yu-Gi-Oh!, where players can enjoy the slower and more back-and-forth playstyle of the game, and enjoy seeing and playing with the cards they knew and loved from back in the day.
This is a special, community-driven, non-competitive format that allows players to play such a format, very similar to Goat Format, but less metagame-focused and with less instantly game-ending or difficult to answer cards, and with a slightly larger card pool to accommodate for additional strategies. While the card sets allowed are increased, key bans/limits are also made to allow for roughly the same gameplay experience. If you already have a Goat Format deck, you can probably use it in this format with 2-6 card changes!
All rules from Goat Format apply to this format as well. This includes rules such as first turn draw, fail to find, and ignition effect priority. These rules can be found here: Individual Card Rulings From Goat Format. All cards printed during Goat Format have their text and rulings from that format, but all newer cards use their most recent text and rulings. If you are playing on Dueling Book, you will need to host your game in Unlimited Classic Mode for this format.