In the last few years I have noticed both with colleagues and from online discussions a tendency for English language writing and speech to become more and more vulgar. That is, I see explicatives used in casual conversation, where in other languages (or even English a decade ago) one would not curse. Specifically, it seems that any sentence in which an adjective could be added, has the adjective "the fucking" added, even in calm everyday speech.
Just as an example, I had intended to add a comment to a Wikipedia Talk page for a technical subject, not some pop icon. I would expect that such a page would draw the more professional and learned audience. Some comments from that page:
Why the hell is there a picture of an aeroplane on this page?
What the hell is a Gaurav?
Why is "the hell" added to both those sentences?
Off-line, I notice this phenomenon both from native English speakers (from Canada and from the US) and from ESL speaking colleagues from Hungary, Russia, Israel, and Argentina. Hardly a conversation goes by without the use of vulgarities.
Online, I might explain the phenomenon by the fact that in years recent the Internet has become more accessible to lower classes, but this does not explain the use of vulgarities in a professional setting. Perhaps there is a popular English-language television show that uses this language? Perhaps when the phenomenon started we should have been more diligent in asking people to be polite, and having failed that now such language is considered acceptable? Perhaps the situation has always been such yet as I've become older I'm now more conscious of it? What might explain the prevalence of obscene language in the past decade?
See the comments on this question for a recent example here on the SE network.
EDIT: As DietrichEpp observes in the comments, more informal communication is now recorded (i.e. written/online) than in the past (mostly verbal). I would like to address with this question the phenomenon of spoken profanity, especially the use of "fucking" as an adjective where no adjective is called for.