I hate them
I love leaving people comments on their blog. I hate always having to type in a slew of slanted letters to leave that comment.
A: I'm really bad at them. I can see fine, I promise, I just suck at reading those babies.
B: Half the time, I forget about them, so I leave a comment and exit out of the page, and then later realized I should have checked to see if I needed to type in those letters for the comment to post, so a lot of my comments never actually show up!
C: How much spam would you actually get if you did not have one? I have had my blog set up from the start without the spam verifier and never have had one spam comment. Also, I get emails of all my comments, so if I ever see a spam comment I could just go in an easily delete it myself. Plus, Blogger automatically checks for spam comments already, and puts any it thinks is spam in a special folder under your comments tab in dashboard, and you have to mark them as "not spam" before they are published.
So, if you want to not cheat yourself out of any comments, I recommended changing your settings. Go to settings, comments, and then check no in this box.
Do ittttt. Blogging is time consuming enough. Make it easier for people to leave you those comments you love so much receiving!!