This question asks about OS X Mavericks, which is still in beta. There's a close reason specifically for questions about software that's still in beta. However, once Mavericks is released, the question will be perfectly valid and might even be posted again. Also, a moderator edited it—apparently they saw fit to leave it up.
Are questions like these off-topic; should they be left up but only answered after the relevant software is out of beta?