Blogger's way to curb spammer's comment

I noticed this when i was trying to leave a comment on Nkkd Lv's post, "I saw my boyfren wank...". Weird enough, when i was trying to post comment on my own blog, there's no verification needed. I'm not sure wether it's because i'm posting comment on my own blog, or it's under trial. It's great to know Blogger is taking the necessary steps to ensure the excellent service provided. I'm certainly happy with this additional security measure. This is the second feature that was implemented by Blogger, after the "flag".

Relevant article: Bloggers Declare War on Comment Spam, but Can They Win?