In the sex scene between Ramsay and Myranda, she has brown spots on the left side of her face. In a later scene, where she speaks with Sansa, she has no facial spots.
When Stannis is discussing the men of the Night's Watch, he says that half of them are "killers and rapists." Until this point the term used had been "raper."
It is plausible that the "common folk" believe someone who rapes to be called a raper. Stannis however was shown on multiple occasions to be very well spoken and intent on correcting common language errors (such as confusing less and fewer), so it is perceivable that he uses the correct term "rapists" instead of the more common "raper".