Contrarian
A contrarian is a person who takes up a contrary position, especially a position that is opposed to that of the majority, regardless of how unpopular it may be. Contrarian styles of argument and disagreement have historically been associated with radicalism and dissent.
Contrarian tropes in journalism
Contrarian journalism is characterised by articles and books making counterintuitive claims, or attacking what is said to be the conventional wisdom (a phrase attributed to John Kenneth Galbraith) on a given topic. A typical contrarian trope takes the form "everything you know about topic X is wrong".
Supporters and critics
Paul Krugman, an economist and columnist for The New York Times, has criticised "contrarianism without consequences" in relation to the debate over global warming and the controversy over the book Superfreakonomics, saying "The refusal of the Superfreakonomists to take responsibility for their failed attempt to be cleverly contrarian on climate change is a sad spectacle to watch ... having paraded their daring contrarianism, the freakonomists are trying to wiggle out of the consequences when it turns out that they were wrong."