Summing up her blog post, she writes, "Are you easily offended by language in a book? Or do you take it all in context?"
Language only bothers me when it sounds "off" for the character or the situation. Profanity seldom bothers me because a lot of people use it. Writers have a responsibility to reflect reality to an extent.
I was bothered recently reading a book in which the protag used the word "perhaps" far too often, making her sound overly mannered, not fitting my image of her otherwise.
Several crime novelists have pointed out that some readers are more offended by language than by depictions of violence and murder. Yes, violence and murder are givens in crime fiction, but no writer intends readers become desensitized to them. They are at heart the vehicles by which crime fiction comments on reality.
Neither should anyone become desensitized to language. Writers want readers to feel characters' anger, fear, anxiety, shock when they use profanity.