16 characters of Oda smokes?
Yes, and by yes I mean fuckton of yes.
It's not uncommon for mangaka to smoke, due to the high stress nature of the job and necessity to stay sharp and awake for long periods of time, but it does often result in managka health failure at early age.
Dunno where to ask this… But what about this unknown spoiler guy who was banned or deleted... but still turned out to be right?
My guess is, he got hold of the magazine a day earlier, since they do get to some stores on Tuesday Japan time.
(For example, Medaka spoiler guy and Kiruko spoiler guy both get their hands on it a day earlier than the rest)
And he spoilered the content a day early, but rest of the shit is made up so he can troll. That's my guess.
It's happened before, right between Himajin and Apprentice era where some douche got an early copy and gave spoiler for that chapter, but also added bunch of bullshit he made up for the future chapters.