Andy,
The purpose of being here, and not on some "Marxist" site, is to try to develop an original interpretation of communism for the 21st Century, not to recapitulate the worn out tired phraseology of 20th Century Marxism. But this requires a bit more willingness to broach issues in an original fashion that is not dependent on the failed Marxist paradigm.
My argument is based on a reading of Marx that places his argument on socially necessary labor time at the center of my interpretation; and it does this for one reason: what constitutes socially necessary labor is of paramount importance to a class of wage slaves who are compelled to labor for many hours per week more than materially necessary by deliberate fascist state economic policy -- both Keynesian and neoliberal. This may appear incoherent to you, but it only because you still are mired in 20th Century Marxist thinking that pays almost no attention to the wage slave except as a victim of forces over which she has no control.
Marx does not belong to Marxists and there is no reason we have to accept the Marxist reading of his theory. If this reading of Marx had been correct, the Great Depression would have ended in a social revolution -- it did not, because that reading of Marx's theory was wrong.
(might be open to negotiation on the Bieber CDs...).



Can comment on articles and discussions
They're constructed by humans, using material found in nature.
Translation: "I don't have to use Marx's concepts in a way consistent with Marx. They mean what I want them to mean."
Again, a use-value is not something that satisfies a moral code. It is simply an object of utility that satisfies a particular need. Whether or not that need is ultimately beneficial according to your own moral system is irrelevant.
Otherwise, cigarettes, McDonald's cheeseburgers, or Nickelback CDs are also not use-values.