The Wiki Governance and Guidelines Portal contains a list of well established best practices to govern the Wiki's community. This page will be updated whenever guidelines are established or modified.
Here's the list of the Wiki pages related to the community's governance and guidelines:
Fixed link to page "Wiki: User Experience Guidelines"
I added two links about Recognition Points and Achievement Medals.
Richard Mueller edited Revision 42. Comment: Added link to "TechNet Wiki: Technology Tags"
Ed Price - MSFT edited Revision 52. Comment: Elaborated on Issues and Feature Requests