User blog comment:Ghmorello/Chapter 907: Game Of Empty Thrones/@comment-25161930-20180608120137/@comment-24850639-20180608185107

Vegapunk's scientific prowess and relevance to the power of the Marines makes him a legend......and just because Joy Boy was first mentioned on a poneplyph in Fishman Island doesn't mean that's where his relevance to the story ends. Not sure where you're getting that logic from. He understood the language of the poneplyphs to the extent that he could craft that message, so his relevance is actually pretty heavily tied into the Void Century, which is major theme of this arc and plot points surrounding it. Thus, Joy Boy's relevance is to the entire story of One Piece period. He's a rather big deal when it comes to the history of this world. SMH.