Kathryn Schulz champions cursing in literature:
[T]he idea persists that the use of swear words by writers is fundamentally uncreative and indolent—that the lazy man’s “Every unhappy family is unhappy in its own way” is “Fuck this shit.” … Writers don’t use expletives out of laziness or the puerile desire to shock or because we mislaid the thesaurus. We use them because, sometimes, the four-letter word is the better word—indeed, the best one.
The Dish 