Both Naruto and Hunter x Hunter had their own problems!
Hunter x Hunter only updated once every few years, which was basically the same as saying it would end sometime in the author's lifetime!
Anyway, if people criticized it after he brought it out, he'd have only himself to blame. Chu Yu was mentally prepared for that!
As for Naruto, its later plot and power levels had somewhat fallen apart, and fans had also criticized it in all sorts of ways!
But when you thought about it carefully, these problems weren't really problems at all!
After all, looking at anime with more than two hundred episodes, which series didn't have its later story fall apart?
Slam Dunk was the exception. Its author, Inoue Takehiko, realized the problem himself, stood firm under pressure and brought it to an end. Then the series became a classic!
But the long-running series that Manga Companies—or their own creators—dragged out to make more money almost all suffered from this kind of late-stage plot collapse!
Take Dragon Ball, where the characters were destroying universes in the later arcs; Bleach, which went off the rails in all sorts of ways after the Aizen arc—especially the Thousand-Year Blood War Arc manga, where its boss Yhwach and his overpowered underlings died like idiots; The Prince of Tennis, which later turned into murderous tennis, with even the side stories featuring tennis matches against aliens; and One Piece, whose plot had been dragged out in all kinds of ways since the Fish-Man Island arc. By the Kaido arc, the Four Emperors' power levels were all over the place, and the protagonist Luffy had even been mocked by fans as "King Luffy, the Pirate King"!
Chu Yu had thought Naruto's later plot falling apart was a problem, but after looking over all