I might have found a small error in the pdf manual which is posted on the help site.
The "old" help pages say:
Where as the pdf (page 44) says:The Special User Parameter:
Any user created as Author, Editor, Publisher, Manager, Administrator or Super Administrator is considered a Special User.
Is that correct, and if so, should that be fixed?"Special: Determines that the article will only be available to users with Manager, Administrator or Super Administrator permissions."