No swear words truly affect me. They are just words, and we ourselves give meaning to them. If someone said 'tree' instead of 's***', but used it in the same context, with the same tone, it would be just as offensive (not very, these things never affect me, I am too stubborn to let them), and much more funny. F***, S*** and C*** (To a lesser extent) are becoming commonly used words to convey greater feeling behind the word (I've forgotten what the word for that is, but the effect is similar to putting an exclamation mark after a word). Not even racial slurs mean that much to me, so long as they are not used in a derogatory manner, but more in the style that you see them sometimes used in movies (E.G: Black guys walking up to each other and saying 'Wassup N****!')
I voted Justin Bieber as that is my personal Voldemort; He/She? who shall not be named. Anyone who says that in my presence will promptly receive a backhander to the face for bringing such an offensive topic up.