If you've visited your fair share of Blogger blogs, you've probably come across this feature. It's the terribly annoying thing that makes you type out two (usually fake) words before you can post your comment. It sounds simple enough, but they've managed to make this into the most aggravating exercise possible! Usually the word is a completely illegible squiggle. Plus, now they make you type in two words. At least now one of the two words is an image so it's usually more or less legible, but still. What a pain.
Generally, the sight of word verification won't stop me from leaving a comment, though I have read some blog posts about this where the authors have said that they won't even try to leave a comment if they see it. What does drive me up the wall, though, is when my first go at deciphering the hieroglyphics doesn't work and I have to try yet again. (How could I have possibly read the gibberish-scribble wrong the first time? Impossible!)
I can tell you, I'm pretty close to joining the camp of people who won't comment if they see that word verification is a requirement. I know the theory is that it stops spam, but Google has a spam filter already and word verification won't stop a determined (human) spammer. You can still manage your comments by reviewing them and deleting the spam. I personally think that any spam that might get filtered out is not worth infuriating readers who would have commented but who are frustrated and don't bother because they first have to "prove they're not a robot."
The nice thing is that Google used to make it pretty difficult to turn this thing off because you used to have to go into the old Blogger interface in order to turn it off, but now they have put it into the new interface so it is easy to change the setting.
All you need is to go to your dashboard, click on "Settings," then "Posts and Comments," and under "Show word verification," choose "No." If you click on the picture below, you can see where you need to go a bit more clearly.
Now your readers can easily leave comments without having to jump through annoying word verification hoops first. I, for one, will appreciate the change!