Yet again, my level of irritation with continual trackback spamming has risen to the point where I'm looking for a new solution to hold back the daily tide. I've added MT-Moderate as a second layer of defense behind MT-Blacklist.
Keep in mind if you're posting comments that most if not all will be moderated, which means they won't show up on the web site until I approve them. It's a sad state of the world, but things would rapidly spiral out of control without severe restrictions on what I allow outsiders to post to the site. Needless to say, if you have a TypeKey account, they will show up much faster as their provenance can be authenticated immediately.
Not sure where this all ends, short of simply removing comments. Trust me, it's occured to me more than once.
