Love this!! Seems to be working well enough. I’ll see how trackbacks go as that is my major problem.
I turned off CAPTCHAs as well to see what happens. Wonderful work! I didn’t even know something like this existed till today..lol. IMHO, it needs to be integrated into an EE future update (with applicable TB moderation of course.
)
Couple Questions.
1) The moderate if unreachable option. Does comment moderation have to be turned on in the weblog preferences for this to work or not? I wouldn’t think so, but just thought I’d ask.
2) I noticed certain key words were highlighted in red when I was writing the comment part. I never noticed that before (but it could be a Konqueror thing). Does Akismet test against the comment content itself and URL, or just the author/email.
I entered the viagra-test-123 as author and email and it was immediately denied as blacklisted for the email address. However, when I used an innocuous author and email (me and me@me.com) the comment went through no problems. The content was viagra, akismet, testing, and a bunch of other stuff. The spam type words highlighted in red, but still went though.
I am probably gonna re-enable captchas as that stopped all my comment spam, but use Akismet for the trackbacks. I was getting slammed with 50-100 a day before I disabled trackbacks about a year ago. I turned them on from time to time to test the system, and in about 72 hours the slamming re-commenced.
So finally, in the vein of that last paragraph, a Feature Request. An option for disabling comment checks like there is for trackbacks. If I only need it for trackbacks, why have the overhead on the comment side. 
Thanks again.