swear during skype call on Xbox One: go right ahead. You won't be banned for that.

If you swear in a private Skype call on the Xbox One you get this half-sentence: $500 console

Edit 1:
He says it happend during voice chat and it was detected through Kinect:

Edit 2:
Apparently, it's not just swearing during a skype call that results in a ban. Swearing during a video you record and upload can also result in a ban. It apparently gives you a 24 hour ban.
They got banned from Gold for profanity (probably during multiplayer match) and can't use Skype as a result (it requires gold). Same consequences as on 360, nothing new.

Twitter user is taking the image and making a nice story to accompany it.