Neither Luffy nor Kata had a single thick streak of black haki leak leaving their fist or weapon. That's how it's used for CoC. And that's how it's never going to be used for anything else.
Did you literally ignore the panel which makes it impossible to be haki leak from CoA, which is core of your entire argument? There has not been a single example of CoA haki leak leaving your weapon or first without coating visible, either.
Oda has been very distinct with the way he portrays ACoC. This is how he decided to represent it. You just choose to ignore it for the sake of whatever personal reason. And you fail to give a single example that looks similar, while tossed 10 at you of all ACoC haki leak looking literally the same.
Like, do you think the author is retarded for using a visual choice that is distinct only for ACoC?
Did you literally ignore the panel which makes it impossible to be haki leak from CoA, which is core of your entire argument? There has not been a single example of CoA haki leak leaving your weapon or first without coating visible, either.
Oda has been very distinct with the way he portrays ACoC. This is how he decided to represent it. You just choose to ignore it for the sake of whatever personal reason. And you fail to give a single example that looks similar, while tossed 10 at you of all ACoC haki leak looking literally the same.
Like, do you think the author is retarded for using a visual choice that is distinct only for ACoC?
Based on that, if you thought Zoro's black lightning is surely CoC Coating, then Luffy in WCI also surely had CoC Coating as well. Which is not the case. You are the one differentiating WCI Luffy's black lightning from 1033 Zoro's black lightning, which is directly contradicting Oda's own depiction of both being black lightning.