Been meaning to mention for a while now that TypeKey and other forms of authentication for my journal comments don't seem to be working properly. In theory, if you sign in you should be able to post comments on old entries without the comments being held for moderation; in practice, that seems to be at least partly broken.
I'm sorry about that. Haven't had a chance to look into it. I suspect that the simplest answer will be for me to upgrade to Movable Type 4, but that's enough of a Project that it's unlikely to happen for a while yet.
In the meantime, keep trying with the authentication (I think it does work in some circumstances), and rest assured that I'll approve legitimate comments that get held for moderation. And if I don't do so within a day or so after you post, please drop me a note--it's possible, though unlikely, that a legitimate comment could get marked as spam, in which case I would never see it.