@Zach, Molly: Having 3 admins was great. Having 4 is greater. If something happens to the forum while 3 of the admins are away, the fourth will be able to be alerted by a user of the forum. And even if they are inactive, we can tweet most of them to get their attention. If not that, they're almost always online in the IRC channel.
I think none of the admins should be removed. Even if they're not here, they've always done an amazing job while they are here. So I think that this was a great move. I have more to say, but I'll stop there.