Why do some bloggers use comment moderation as well as word verification? If you are moderating your comments do so. Why stick people with typing in their email address (as proof they are not bots) then torment them with trying to read word verification. I get the word verification wrong at least one out of three times I type that thing. But, having done so it annoys me to see that my comment is still being held for moderation on top of that. I really think bloggers should use moderation and leave it at that.
Get rid of the excess moderation. Don’t use word (or other types) verification as a security blanket. If you want comments let people comment without having to perform verification you don’t really need. Make commenting in your blog as simple and painless as possible.
If you really don’t want comments just turn them off and save everyone the hassle, including yourself.