I'd like to put in a plea for changing the comments setting to "Anyone can comment". I can't leave comments because I don't write a blogger blog anymore, and I want my link to go to my real blog. I can't use "Open ID" because my blog is a network blog, not a personal one.
Last year we had the setting "Anyone can comment". If we're worried about auto-bot spamming, we could add word verification. Thanks for considering it!