Vileness. Within the eyes of many martial artists, this wasn't anything splendid.
However, many people would still utilize these moves that they feel were underhanded during times of life or death or when opportunities opened up.
However, not many people knew that vileness was in fact an impactful fighting style. It could be completely described as being wide, profound, and deep.
It was just that this school was too obscure. It was also often criticized by its rivals and practically all martial artists. As a result, there were very few people who utilized the vile fighting style, sincerely treated it as an occupation, and dedicated their entire lives into researching it. There had never been any news of such a person doing so in the modern alliance.