User blog comment:Miskos3/Fairy Tail 542: Instinct, Review/@comment-24277053-20170704225555/@comment-7418318-20170705182238

It's funny now the chapter repeatedly said that Acnologia acted on pure instinct and without conscious thought and you go and call him smart. ^^

Though it's a bit sad that a creature acting solely on instinct is taking more logical actions than the ones with cognitive thoughts.