Now some cultures use epithets extensively (e.g. Norse sagas use them ALL THE TIME) but at least there they're a lot more poetic or creative! Also they tend to be a specific thing about the character not just a generic description. It's like a fancy nickname. Also some cultures with either single names or a very restricted set of common second names; the Welsh, historically, were a good example of the latter. The Norse thing sometimes means it's a lot of effort to understand who the hell they're talking about because we lack the cultural context for it to be obvious sometimes. I mean, if they say "the Sky-Darkener" that probably means Thor (thunderclouds), but a lot of them are obscurer and probably references to other, lost tales.