I just want to thank you for what is possibly the best mod I have ever installed! I have a big forum (90k members and 55k unique visitors a day) and the spambots were becoming a serious issue for my moderators and me. We were averaging 500 spam posts a day in fact.
Since installing this a couple of weeks ago the spam has practically gone from the board - I believe yesterday's spam count was 3 or 4 posts...
So thank you for this - you have no idea how much I appreciate it!