The common argument here is that those creatures feed off emotion. So they manipulate us to force us to react, and that gives them energy to then do other things. Those names they have us call them by aren't just cute nicknames, but their source of food.

[Yes, it's very annoying, Caedra agrees, but she doesn't and has never reacted in quite so strong a way. Feeding off of fear, or sorrow, or anger are quite common among some of her own people.]