The Shonen Powercreep and its consequences
Author constantly trying to one-up himself every arc by introducing newer + stronger + more evil opponents for """more hype and aura""" at the cost of the story being bloated and inconsistent
I remember defending Garp back at Marineford for sticking with the WG and not siding with his pirate kids, now I can't imagine doing that again in big 2025 when this dude knows about Imu (literally Satan), Celestial's hunting game (literally genocide) and still chooses to work for them 38 years later
The marines keep looking dumber and dumber every arc, not because Oda ruins them, but because he makes their employers WG somehow more cartoonishly evil than your average rape-and-pillage fodder pirate