Now before you dismiss me as some old fart or a religious fundamentalist I should make it clear that I'm no stranger to bad language and seediness. I sometimes use far worse language... but I'm respectful enough to do so in the right circumstances and company.
"So just unsubscribe if you don't like it..." you may say. That I've done, but I would like to add here for the benefit of other marketers and my business environment in general that this trend is going too far.
If you're marketing to a list of known porn enthusiasts it's one thing. But a very large general marketing contact list is made up of a wide cross-section of society. You don't address a large, mixed group with PIMP and H.O.E. It's bad judgement, it's disrespectful and it's dumb because it's bad marketing.