There's some interesting reading around recent work toward developing a Universal Code of Conduct for Wikimedia. This post is a video interview with Amber Berson, one of the Lead Co-Organizers for Art+Feminism on the Wikimedia effort. The reasoning for such a code is simple, and expressed by a long term Indic language community member: "Many Wikimedians have stopped contributing to the projects because of harassment/personal attacks. This needs to stop." What makes crafting such a code especially difficult is a lack of common agreement on ethics, and significiant cultural differences among people around the world. But the attacks must stop (not only on Wikimedia, but generally).