[optforfon]

At least when it comes to startups this makes total sense. Work is increasingly both your work and your life. Your friends are increasingly your colleagues.

Traditionally you don't cuss in the work place b/c you have to stay professional - ie. you have to not be emotional about your work. Cussing is a form of injecting emotion into your speech. If you are at the office 12 hours a day with your friends, then the lines get blurred.

Personally I don't like the trend, but to each his own. There are pluses and minuses to each type of workplace