User blog comment:Firegod00/Fairy Tail 419- In Which Firegod Has Had Enough (The Message Of Flame)/@comment-114.78.34.39-20150209015204/@comment-3030647-20150209024905

Right, perhaps those aren't the best examples of character development. But can you really expect Natsu of all people to be mature after returning to normal society after a year and finding out that some other random guild is taking your place at the top? And you've gained a whole lot of power and you wanna show just how awesome you are? AND THEN you've found that your guild is disbanded and your friend is ardently searching for them?

Yeah, knowing Natsu and who he's been around for a while (I assume Gildarts), I'm genuinely doubting that's the case. If he were in a rather serious situation, he might look at it differently, who knows. But maturity really can't be expected in a situation where Natsu wants to show off his power. I think we all know that and the fact that Hiro's stuck to that part of Natsu's character is, at the very least, consistent writing.