Another Movable Type Spam Prevention Method

I get hammered with spam on this site, and for the most part Akismet, Spamlookup, MT Autoban, along with a few other hacks, have kept it from appearing on the site and putting too much of a load on my server. I recently installed a new plugin called NoHarvester, which blocks comment spammers from using zombie computers to do their spamming (basically does an IP address check) as that seems to be a fairly common attack lately.

While so far it appears to be working just fine, please let me know if you're having trouble or if it thinks you're spamming by e-mailing utterlyboring [at] gmail [dot] com, as I can only test this so much.

Speaking of spam, I have 10,123 published comments on this site, but the comment table's auto-incremented ID is set at 55,442. So for every one published comment, I've received nearly 4.5 spam comments (and that's only counting ones that have made it into my database -- I'm sure I've blocked thousands of others that have never made it to my server).

Update: Yes, I know there is spam on this entry. It's been marked as junk on the back-end, but it's still showing up. I'm working with SixApart to troubleshoot the problem, as something isn't right, so I'm leaving the spam there temporarily as an example.