I would say that I am a polite, well spoken 16 year old who is only foulmouthed in the right company, or in an appropriate situation. I even have a personal struggle with the 'c' word. It makes me cringe every time I read or hear it. It leaves me feeling uncomfortable if I ever have the urge to use it. Every other cuss word fails to make me even bat an eyelid but I would say that, on the whole, I'm a relatively mild swearer.
In the company of friends I have a tendency to cuss when I get angry or passionate in conversation. The more passionate I become the more frequently the swear words leave my mouth. If I were to speak like that in more formal company then I suppose people may be a little shocked. I can't be the most pleasant nor articulate speaker to listen to when all barriers are down. However, without overdoing it swearing can often have comic value. It can be witty before becoming too crude. So when swearing is used in a calculated and thought out manner I believe it has worth. It can be powerful, it can be ballsy, it can make people laugh. If I read something that uses cuss words often it can make the piece more relatable. More accessible. Instead of standing as a potentially pretentious article a swear word or two can make it seem more like a conversation around the dinner table late at night.
This does not diminish its effect, late night conversations can be equally as meaningful as a carefully crafted piece of writing. Granted if every other word in each sentence is fairly offensive then you'll probably come across as a little angry. Unattainable even. You inevitably get a bad name if you continuously spurt out provocative language. But swearing mildly and occasionally is no indication of a less than sunny disposition. Using swear words to fit in with a certain style of writing, a particular genre, causes no harm. If I was to say the word... 'fucking' perhaps but then followed it up with 'perfidiousness' surely I am not stripping away from my intellect. If I swear does that mean I degrade my opinion? Does that make me a bit too feisty?
Whatever it does I would hope that anyone reading any of my work and happened to stumble across a few swear words would either dismiss it or appreciate it was incorporated specifically into the style of writing I intended to use. If somebody mistook it for being a vain attempt at feistiness and then went on to somehow find that offensive then I say, well, get a fucking grip.