User blog comment:IamJakuhoRaikoben/Chapter 487: The Third Seal, Review./@comment-130.105.215.179-20160531081845/@comment-1359322-20160601163452

Well if he was more consistent his character would be much better. He repeated several times to several characters saying that he will exterminate humanity and in his next appearance he reverts back to his initial self, and this went on for multiple times from Chapter 340-478. It took him 139 chapters before he "solidifies" himself for that purpose. And it was after he started a war with Ishgar yet still wanted Natsu to kill him. The contradiction is fine and all but the repetitiveness can be slightly annoying which i think did some damage on his characterization.