The very long streaks of lightning is a indication of conquerors. I know lots of characters without conquerors show lightning streaks as well, but when you look at it, the lightning streaks looks a lot different when comparing them.
This is Jimbei showing lighting streaks. Looking at the two, these lighting streaks are a lot thinner compared to the panel with Aokiji and Garp, And Jimbei isn't a conquerors user.
These lightning streaks shown by Luffy are the same lighting streaks as the first panel with Garp and Aokiji, and Luffy is a conquerors user.
I think the mods should add him as a conquerors user cause he's deff showing indication of having conquerors haki? On top of that, he's coating his armament with conquerors. And I seem to remember y'all instantly added Garp onto the list of conquerors users once he used Galaxy Impact even though he never got confirmed having it let alone nobody on Pirate Island said he used conquerors haki not once from what I remember (I could be wrong). I don't remember seeing no fodder passed out with foam coming out from their mouths, so if Garp was instantly added on the list of conquerors users after Galaxy Impact, why hasn't Aokiji been added on the list?