From the guidelines (bottom of every page): "What is considered offensive? Generally, anything that couldn't be shown on US broadcast television. This includes anything you post on the site: questions, answers, comments, user profile information, links, avatars and usernames. While we encourage our users to express themselves freely, questions on the regular Answerbag site must be appropriate for users age 14 and above. Questions and answers that are sexually explicit or graphic belong in the AB4Adults section of Answerbag. Question context and category is a factor as well: some questions that might be offensive in one category might be appropriate in another. When content is flagged as offensive, the flag will be approved if the content doesn't meet the broadcast TV rule-of-thumb, if an individual user is being attacked, or when in the opinion of site moderators the question is intended to be malicious or hurtful. Sometimes opinions may seem offensive, and some questions are intended to challenge the way other people think. We tend to be careful about censoring these types of questions, and err on the side of preserving content. Within the larger goal of preserving a useful and harmonious community, we believe in people's right to speak their mind, and we have found that allowing questions which may seem offensive can lead to very informative discussions about why the question is or is not offensive. We recognize that this is a fine line and can involve some very tough judgment calls. If you feel that a flag was accepted or rejected erroneously, let us know by clicking the Feedback link at the bottom of every page." For a bit more, see http://www.answerbag.com/blog/comments/201 (in the blog - See the related comments there, too.)