Originally Posted by
Cunninglinguist
As such, it is understood as the appropriation of someone's intellectual property and the presentation of it under the pretense that it is ones own. It is the inclusion of this second stipulation that makes it plagiarism, and in almost all the cases you have given, the artists are not trying to do the latter, and therefore would not ever by any reasonable person's standards be construed as plagiarizing. How the law would deem their actions is another story. Fairey might stand in a moral gray area because, as suggested by billl (I think), he does not have a reputation preceding him, unlike Warhol or English, which makes his own personal advancement in the wake of his "borrowing" suspicious. There are perhaps other reasons, but I don't know if it's worth nitpicking into this case.