I managed to "reject" (i.e., delete) 10 comments I meant to publish. Apparently the only fix for this issue is to simply copy and paste the comments from the comment moderation emails I received.
So if you left a comment on here in the past 24 hours or so and it isn't linked up to your profile, that's the reason. I apologize. :-(
[That'll teach me to try to moderate comments on my BlackBerry.]