I think this is similar to Wikipedia hosting a picture of "Amish" on that page - the Amish are morally opposed to being photographed. Wikipedia tends to do quite a lot to piss on other groups, mostly because the average Wikipedian is a white, European who has rich enough parents that they get to do nothing all day. They are spoiled and believe that everyone else is lesser than them. The whole thing about penises, trains, etc. all over Commons is just part of the system catering to the worst kinds of people who have nothing better to spend their time than pointless obsessions.
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