is only informational, but stored in each pages {author} database entry
    field. It is not required to have this variable set, it is just used as
    beatification for the database entries. If it was not set, then still IP
    addresses appeared in the {author} field of edited pages.

    on the other hand is used in some of the distributed auth plugins to
    state that a user already was authenticated correctly. So this variable
    is not necessary, just a convinience interface to work around the
    completely functions-based _auth API.

    could be used to allow permission granting from outside of ewiki,
    without writing any custom(ized) ewiki _auth plugin.
prev << "ewiki_auth_user()"
next >> "ring levels"

You cannot modify the ProtectedMode file, but anyhow any ideas or suggestion should as usually get filed on BugReports, UserSuggestions or even better the ProtectedMode.Discussion.