Having a Gravatar is another benchmark that I use when judging comments.
Good comments have always been important to me. That’s why I have a Comment Policy. I’ve even written a post trying to educate folk as to the proper way to comment. Unfortunately most folk just don’t get it. They think they can just drop in, leave a crappy comment and then rush off. To think that a lot of these comments are left by people who are paid to leave comments. If only the poor saps who are paying for them knew what they were getting. Then again some of them do know which is why I get so many emails asking to remove comments because they’re hurting their Google rankings. I wrote about that in Google Updates And The Disavow Tool.