Pre wci if im not mistaken im sure admirals vs yonkos was the bigger talking point when compared to z vs s.
Nah, pre-WCI was one of the peak Z vs S times. That's when Oda announced the Year of Sanji, Sanji's father was the blonde Gorosei Top 5 assassin, Zoro was the son of Kaido/the Shogun-who-was-a-badass and was going to defeat them.
These are the eras of OJ
The Dark Ages. Years prior to 2015. I hadn't joined then. Don't know much about it.
The Enlightenment. Feburary 2015. Zoro defeats Pica. Other fandoms enter paroxysms of rage. Cooled somewhat by G4.
World War One. 2016-17. Sanji is wanted Alive Only, and the Year of Sanji is announced. Lasts until the sad capitulation of the Sanji fans when all he accomplishes in the first half of WCI was getting battered by his family, beating up Luffy who wasn't fighting back, crying, agreeing to marry Pudding and give up on his dream, crying again when she laughed at him, crying again that he wanted to go back to the Sunny in a Robin redux. Also Zoro doesn't appear once so there's not much to talk about. Zoro vs Sanji is BANNED by the Gorosei.
World War Two. 2017-18. The forum moves on. A wider war than the first one is fought, over the merits of One Piece and OJ as a whole. Two major battles are fought, the Great Debate and Luffy vs Katakuri. A mod advocates genocide for gays. I wasn't joking when I called them the Gorosei.
The Fall of the OJ Empire. 2019. Much like Rome, OJ splinters into two factions, Worst Gen and Thriller Bark, after years of internecine fighting.
Ken Burns is doing a documentary about it.