I think depending on how much text was changed most of the article would show to have appeared elsewhere than on ZeroHedge. About half of Zerohedge content is 1:1 repost.
I think sometime It's better to do 1:1 repost than to add very little commentary as it could confuse the source of the commentary for the author or the main article.
Yeah lots of their stuff is just blockquotes from bloomberg or reuters with spin added