Review Detail of Eroldin in HP: Harry Had Enough

All the author's books are like that, I don't even know if he will delete his comment or not. Anyway, can you tell me a little more about the story? Summary looks to me like a Mc who just makes stupid angry remarks and walks away, even if he's right. I'm on the side of self-interested/beneficial selfishness, for example Fujin (Naruto: The Wind Calamity).