Before revision:  As a form of toxic and abusive language, ad hominems contain harmful language that could further amplify the skew of power inequality for marginalized populations . Since dialogue systems are designed to respond directly to user input, it is important to study ad hominems in these system responses.
After revision:  These attacks are harmful because they propagate implicit biases and diminish a person's credibility . Since dialogue systems are designed to respond directly to user input, it is important to study ad hominems in these system responses.