"Moralists have no place in an art gallery."

Here's a question I have for everybody currently writing re Robin Hobb's frothy anti-fanfic rant: if you did encounter a good argument for fanfic being morally wrong, something you couldn't answer, would you stop writing it? Seriously? Would you feel guilty? Just how concerned are we about the possibility that we're doing something wrong?

( I suspect that the answer for many people is 'not very.' )