If you go to Thingiverse and search for 'dickbutt' you may be surprised that there are 0 results. Others were as well and this started a firestorm of conversation on reddit regarding the rights of Thingiverse to censor such content. The revelation that the content hadn't actually been censored didn't impede the argument but it does pave the way for future opinions should Thingiverse ever decide to draw lines in the sand based on moral objections to designs. Read more at 3DPrint.com: http://3dprint.com/117903/3d-printing-censorship/