User blog comment:IamJakuhoRaikoben/Chapter 518: Master Enchant, Review./@comment-5303512-20170126232425/@comment-5303512-20170127134315

They do actually, it is a matter of if those feelings are true or not, because power of feelings is not some power you can get just like that, it is a force of nature in of itself, in fact many magics are linked to feelings. Like Laxus failed to kill everyone in Magnolia because he secretly cared about everyone, and Sting stated to have the power of feelings, he attempted to fight Fairy Tail but was overcome by his true feelings that this is wrong. Even Meredy has the power of feelings in the form of Sensory link, and Natsu's flames of emotion. And it's power can even be stronger from the feelings of others too.