Suggestions - Spam Comments
All comments except one (hundreds of comments) made to posts on my blog have been automated script spam.
By default, comments should be moderated (they should not show up until the blog owner approves them.)
Additionally, there should be a facility for requiring comment posters to identify themselves as human (CAPTCHA.)
I believe that they are working on the second part but I just tested it and it is not in place on my blog.