With the development of the Internet, online harassment becomes a significant problem nowadays. 41% of U.S. adults have personally experienced some forms of online harassment. Two questions are examined in the paper: First, what kinds of characteristics of adults make them regard offensive content online as a big problem? Second, what kind of characteristics of adults make them prone to online harassment? The data from the American Trends Panel Wave 74 September Survey are used. Logistic regression is applied to these two questions. For the first question, choosing a closer view whether offensive content online is too often excused as not a big deal or many people take offensive content online too serious is the outcome variable with several independent variables: gender variable, age group variable, education level variable, race variable and region variable. For the second question, whether the survey respondents have experienced any kind of online harassment is the outcome variable, with gender variable, age group variable, education level variable, race variable and region variable as independent variables. The results of the models show that gender, education level, and age are all important factors for both questions.