We (LosTechies) have added 2 features available from his CodeBetter.CommunityServerExtensions:
Captcha: This feature is a security measure to prevent spam comments and other non-legitimate items on LosTechies.
2 notes on the Captcha module:
1. From research, Brendan’s Captcha module is the best one out there for CS 2007.
2. If you are a member (logged-in) to the CS blogs, you won’t see the Captcha module. It is used for individuals who are not logged-in (trusted) to the site.
Kudos to Brendan.