Plagiarism is the "wrongful appropriation" and "stealing and publication" of another author's "language, thoughts, ideas, or expressions" and the representation of them as one's own original work

https://en.wikipedia.org/wiki/Plagiarism

I fundamentally do not believe in copyrights so you're going to have a hard time making me believe that if Zerohedge.com were to join Steem their content would be less rewarded than @Zer0hedge snippets.