I found this interesting. From Wikipedia:
Wikipedia is an online encyclopedia and, as a means to that end, an online community of people interested in building a high-quality encyclopedia in a spirit of mutual respect. Therefore, there are certain things that Wikipedia is not.
See also: Wikipedia:Profanity, Wikipedia:No disclaimers in articles, Censorship, and Wikipedia:Options to not see an image
Wikipedia may contain content that some readers consider objectionable or offensive. Anyone reading Wikipedia can edit an article and the changes are displayed instantaneously without any checking to ensure appropriateness, so Wikipedia cannot guarantee that articles or images are tasteful to all users or adhere to specific social or religious norms or requirements.
While obviously inappropriate content (such as an irrelevant link to a shock site) is usually removed immediately, or content that is judged to violate Wikipedia’s biographies of living persons policy can be removed, some articles may include objectionable text, images, or links if they are relevant to the content (such as the articles about the penis and pornography) and do not violate any of our existing policies (especially neutral point of view), nor the law of the U.S. state of Florida, where Wikipedia’s servers are hosted.