For me, I was a technical writer and editor, and it sucked all the joy out of it. So I stopped writing altogether and eventually quit that job. When I discovered fanfiction, for Star Trek: Voyager, there were a few prominent fanon interpretations that bothered me, and I eventually started writing again to set them straight. Then from there on to other fandoms. I found the joy in writing again, and clung to it. Now I feel I'm starting to have original stories burn within me again, so I'll write them, but I don't care whether it's fanfiction or for publication as long as I don't lose that fire again.