Why use profanity in real life and writing? Because sometimes 'darn it' just doesn't cut it.

His fingers wrapped around the smooth metal handle, and he eased the knife from its sweat-patinaed leather sheath and weaved the blade skillfully through the air. While it didn't have the impression of a Fae-forged blade, he did feel something alive within the mortal steel as if the old blade had drunk deeply of blood and continued to thirst.

Swearing was invented as a compromise between running away and fighting.

Scummer, pox and wound rot!" roared Tunstall, slamming his fist down on the bed. "Gods cursed the pig-tarsed mammering craven currish beef-witted bum-licking gut-griping louts that did this to me! May every flea, leech and hookworm in all creation find and feast upon them!

If you want to get rid of the perceived meaning of curse words, you’ll have to get rid of the feelings which bring their use, and that’s not going to happen.

If I cannot swear in heaven I shall not stay there.