Many tags have no definition and instead show "Help us edit this wiki". In the time since the tags were created, people have usually used them according to their own interpretation, so there may be mixed meanings or the usage may have morphed from the original intent. To create a definition at this point, what is the appropriate basis:

• The contributing writer suggests what they think should be the meaning and then the community approves/disapproves/revises?
• The predominant existing usage becomes the basis for the wiki?
• The tag gets cleaned up through the normal cleanup process, during which the community decides on the intended meanings of the resulting tags, and that becomes the basis?

How do the mechanics of the process work? Someone submits a suggested wiki, it is reviewed by some number of people above a certain rep, and it is either accepted or rejected by sufficient votes in either direction?

How did we get so many undefined tags? Why isn't there a requirement that creating a new tag entails defining it?