It's hard to miss. Profanity is everywhere: books, movies, music. Once what was unacceptable to say has now become the norm, for better or worse. Admittedly, it doesn't effect what I buy as a consumer, I think I just tune it out. Some of my favorites are loaded with profanity. Even the classics like Of Mice or Men have it.
Yet, as a writer, I hestiate to use it (and there are a couple of terms I simply refuse to write, regardless). What about you? Do you agree with the "stay true to your character" argument made in favor of profanity? Or, do you try not to use it at all?