Online, I don't think I've ever used them, and never will, probably; it's not that tough to get your message across in places like this, so I don't see any need at all. In real life, though, I find myself doing it every now and then. Whenever something goes wrong and causes me to literally pull my hair, I'd be saying the f word repeatedly. Not loudly, though; silent enough so that not much people could actually hear it. If I run into some overly troublesome person (if they're around my age, that is), I'd sometimes call them b. I don't know--things could be a lot more stressful in real world, and strong words like this do help me relieve them, somehow. x_x Out there, we have many other people like this; I'm sure I'm not the only one.