Support credential

From eg

To support credentials is more permissive than a use real name policy and helps to take the focus off who wrote this and put it onto the content.

A wiki best practice is to require four specific levels of anonymity

1. Strictly anonymous edits with IP numbers traceable only for legitimate criminal (not civil) purposes... this is good enough to protect anonymous sources and should be used by anyone who wants honest feedback and is willing to go to court to protect whistleblowers. Corporate wikis should use common web passwords and avoid access control specific to the wiki software to better align web and wiki.
2. Credentialled edits with shared identities, e.g. "GPO member" or "client" or "board member" or "Council member" or "former Council member" so that it's clear that the author has a certain status but not who they are specifically; there's empirical evidence that this produces the best private feedback; you can implement by sharing a password to one account by this name, or (better) by implementing modifications to the software to credit the edit to a particular credential/group, rather than the person logged in under their own name. This is very useful to support factions. This should NEVER be used for administration, i.e. accounts with names like 'admin' or 'chief editor' or 'staff' are never acceptable. The actions of those with the most control must also be most transparent. See below.
3. Where strict anonymity and shared credentials are not enough, or where someone wishes to claim credit for something, use full personal names with absolutely consistent use of capitals, abbreviations and spelling. For politics the name should be identical to the one appearing on campaign signs, with underscores between, just as it would be in Wikipedia: "George_W._Bush". As in Hollywood everyone must have a different name, no numbers and no cute pseudonyms...
4. Administrators, chief or senior editors, or other staff are a special case. They can be accomodated with accounts indicating their function: "George_Jones_as_chief_editor" etc. This is just a credential that only one person has. That makes actual use of authority easy to track, and keeps the use of such powers to the bare minimum. Actions taken by people "as" particular functions can be challenged or undone, but, this escalates the problem to another authority to resolve. At this level not just the person but the purpose they were serving has been declared.