User blog comment:IamJakuhoRaikoben/Chapter 369: The Place Prayers Reach, Review./@comment-4829046-20140201130412/@comment-2214433-20140201223134

Well, I'm not saying he has problems to such extent, but we may never be sure what -exactly- is actually being written by the author and what not. For instance, I'm sure Mashima posted on his twitter at least twice that he had to redo an entire chapter.

We were talking about it on chat and I brought up Naruto as a prime example, what if the fact that it fell down so much wasn't entirely Kishi's fault? What are the chances he's pressured into something? Because that one shot he published the other day was quite good, so he can write a good story if he wants.