User blog comment:Miskos3/Fairy Tail 527: Emotion, Review/@comment-25111584-20170318144809/@comment-24489996-20170318150154

^^^^^^

This.

I don't mind that you can make things up as you go along because as Misk pointed out below, you can have the best laid-out plans for your story, but as things go along, there will be stuff you might shift slightly for one reason or another, going against what you originally intended. However, what I do mind is that whatever you're retconning interferes and degrades the plot of the story, making it worse than it actually was before the retcon. At that point, you have to wonder what's the point of making those additions and changes in the first place.

I'm going to admit that Hiro's the first author that I know that constantly does this on a basis, mainly to pander to a certain audience or to let certain main characters *cough*Natsu*cough* shine above others because of "reasons". You would think that this is the same person who wrote an excellent piece like Rave Master and all those one-shots. I mean, Kishimoto, Toriyama, and Isayama, amongst many mangaka have done this at certain points as well, but not as frequently as Mashima has, which is why I can at least give them a pass.