Let's not be pedantic about this. There are dozens—at least—of messages exchanged each day that meet that criteria. That is not the commonly understood definition of vulgar in the western world. If you have a better and more inclusive suggestion for that particular label, please do share.
I can't believe that there are dozens of such messages exchanged daily. I've yet to see any, other than the one being discussed, and I've been playing for a year now. Even if this message were common, one would have to wonder what earned this case a distinction from the rest.
In the Western world, 'vulgar' is an uncommon term and isn't well understood at all. When you hear the term, which is on rare occasion, it's usually being associated with upper class Victorian society. A hapless child, in a period piece, will utter a dirty word in front of his strict parents, eliciting from them a sharp punishment accompanying a comment about 'vulgar children these days'.
