Comment Moderation on Until the SPAM Storm Blows Over

Some of you have noticed (I've been IM'd and e-mailed) that I've turned on comment moderation. I have no intentions of making this permanent, but recently I've been having to delete 50-100 blog comment spam messages each day.  This far outweighs the cost of "un-moderating" the few real comments I may get each day.  This recent storm has kicked off further efforts here to improve our system and I'm hoping I won't have to keep moderation on very long.