He wouldn't be viewed as having much etiquette, and thus wouldn't get much respect from many. Thus the honor drops. There's no further consequences, so it's all fine.
Since the vulgarity feature is IC, I have to agree with this. It's not abuse or a breach of the social contract, it's just a normal consequence for your character. You don't have to stop, only to accept the inevitable consequences.
It's like the honour drop for infiltrator actions.
