The word verification feature is set up as a default to anyone who starts a blog with Blogger. If you love to comment on other blogs, I think you know what I'm talking about. The wavy letters, combined with a number. Usually illegible enough that I need to click on the tiny grey circle several times before it pops out one that I can read!
I have kept this feature because according to Google, it's necessary to avoid spam. I removed it because I want to make it easier for people (especially for my older relatives who subscribe by email), to comment on posts.
I don't think my blog is a huge target for spam, but if that becomes an issue, I can always switch to comment approval.
Would you like to change these settings on your blog? Let me know and I'll write a tutorial on it. Next week! Because I'm up to my ears in packing boxes right now, and scheming about my mom's present on the side.