The GFDL license states:
B. List on the Title Page, as authors, one or more persons or entities responsible for authorship of the modifications in the Modified Version, together with at least five of the principal authors of the Document (all of its principal authors, if it has fewer than five), unless they release you from this requirement.
Now, you see - in the current database dumps, which are used on most of the Wikipedia mirrors (both online and offline), there's only the very last contributor.
Wouldn't it be wiser to add the authors of the article, even if their revisions should stay empty?
-- Pozdrawiam, Dariusz "Datrio" Siedlecki