The few panels I have seen of Gojo makes me think he exists for no other reason than for the mangaka to wank how powerful he is.
And there’s not really a reason he’s that powerful, he’s just a teenager/early 20s prodigy who is stronger than everyone else for no reason lol.
At least Oda may be hinting that Shanks has a dark side or some shit. Every panel I have seen of Gojo seems like it is just the mangaka wanking him.
I don’t read JJK tho.