Jenn Dolari

It sounds bad (I think) because it's a minority reference. That is, I have no problem being referred to as "a woman" and M has no problem being called "a man". Also, to my ears, calling someone "a Christian" is normal whereas calling someone "a Jew" is weird and potentially worrisome, and I vaguely remember a thread on LJ years ago where many Jews agreed, saying that "Jewish" was fine but being called "a Jew" was not cool.