In fact, it’s a little more complicated. While opponents of the legislation have often used “Obamacare” derisively, Obama himself, and some of his supporters, have used it. They apparently don’t consider it derogatory.
But given the various views of the term, we’ve advised our editors to allow the word mainly whenwe’re quoting someone who uses it — not on our own. On the rare occasions we use it ourselves, we should say something like “also known as ‘Obamacare,’ ” with quotes around the word.