One of the supposed justifications for the intellectual monopoly called copyright is that it drives creativity and culture. In the last few weeks alone we have had multiple demonstrations of why the opposite is true: copyright destroys culture, and not by accident, but wilfully. For example, the MTVNews.com site, along with its sister site CMT.com, …
That’s plagiarism.
You can have plagiarism law distinct from copyright.
That way, the original author will always be mentioned as a source in the derivative works and it is highly unlikely they will receive no attention should your derivative work become popular.
In this example I would have committed both crimes.
It’s copyright infringement for me to republish and profit from your work without your consent (while that work is not in the public domain).
It’s plagiarism for me to pass that work off as my own.
So it was a bad example.