I have a bit of a pet peeve with Blogger and I wonder if I am the only one? For me - blogging is about community and I love visiting the blogs of others who have commented on my blog. It irritates me when I visit a Blogger blog that requires a blogger or open id account to leave a comment.
I have a self-hosted wordpress blog, so my blogger account has no blog attached to it - I actually had to create one because I found so many blogs I couldn't comment on at all without:(. If I want to leave you a comment and let you know where I came from so you can visit me back - I have to leave it in the actually comment which is kind of spammy.
I know it probably helps with spam moderation somewhat but for those of us who don't use Open Id or Blogger - it's frustrating. Please consider setting your comments so we can sign with our names and URL instead! After all, when you visit my blog I allow you to leave your URL.
This is not a problem only with Blogger. Many of the blogging platforms require an account. I agree that it is frustrating but unless a person allows anonymous comments it is just something that we have to contend with or decide against leaving a comment.