@Kaido:
Having Kaido not be affected at all by the Scabbards' attack would be possibly the biggest example ever of completely ruining buildup. If I spent two years and 80 chapters reading this arc just for the Scabbards to be completely inconsequential in the climactic war I would be pretty pissed as that is objectively bad writing. What makes this complaining even more unfathomable is that it's basically guaranteed Kaido is going to win here. Y'all need to give panels and chapters their due weight in the scope of the larger story and enjoy the story as it comes along. It was the same crap in Whole Cake Island where I swear people were acting like Big Mom was done for and had just shit the bed whenever a chapter had the most minor of a Straw Hat victory, only for later chapters to have Big Mom keep chugging along and tormenting the protags.
I hate this kind of example. Scabbards hurting Kaido doesn't make sense for many reasons. First and foremost they were never shown to be that strong. Neko and Inu couldn't get past Jack. Kinemon was awed by Zoro cutting Pica. Ashura shit himself when he saw Kaido the first time. Kiku was all "ahh I can't cut anybody". Izou never showed anything great. Raizo is Fukurokujou's rival. All these guys I listed harmed Kaido. Like really. Not only they hurt him, instead of having Kaido just instantly decimating them, you have Kaido treating them like they are some kind of big threat.
Oda has lost it with this kind of things. He can still write a nice story, create some awesome characters but he also just wants the good guys to always stomp. Biggest bad in the series till now is reduced to a hype tool for the scabbards.