Since the beginning of the Wano Country Arc, One Piece's popularity has skyrocketed, taking the series to new heights thanks to its long-term storytelling and the increased production value of its anime adaptation. Monkey D. Luffy's journey across the Grand Line is finally reaching its climax after 25-plus years of syndication, and in anticipation of his coronation as the King of the Pirates, many fans are reflecting upon the legacy that he has left behind.
Source:https://www.cbr.com/one-piece-skypiea-arc-is-underrated/