I'm surprised at all the somewhat naive and pseudo-street-wise responses to what I consider a common sense stance.
Of course, I know that my child is being exposed to this kind of language in the schoolyard and in the media. She's heard me accidentally say it in earshot a few times, for Pete's sake.
I just consider it a coarse and low class way of expressing oneself. I know she'll eventually be teaching me swear words I've never even heard. I know she'll privately be speaking that way amongst her friends and peers. I know it's in literature and essays that she'll be reading.
I just find it distasteful to hear a young child speak that way, and I find it offensive to hear an adult talk that way in front of a young child. It's how I was raised, how nearly everyone in my generation was raised.
Look, if one of these kids, who thinks it's cool to put words like "Fuck" and "Bullshit" in the title of a blog or e-book, were to walk into a five star restaurant that requires fancy attire and start dropping the F-bomb, they'd be asked to leave or at a minimum generate some annoyance and disruption.
But they wouldn't speak that way in a five star restaurant, nor would they walk into a day care center and speak that way, nor would they curse in front of a neighbor's young children. Why? Because they know better. They know that society, even today, does not condone that kind of language around young children.
Many, if not most, parents would disapprove to the point of threatening with violence someone who was clueless enough to curse in front of their children. At a minimum, parents would whisk their children away and shun such a person as a clueless jerk or someone with mental problems.
If the authors of the book think they're being cute by using bullshit in the title, they're wrong. They're just resorting to a cheap trick that may trigger the "so what, that's how everyone talks" type of reaction in some, but will trigger the equally legitimate "Get that off my screen!" reaction in others.