I understand that for some the ability to comment is borked. Until the issue is fixed, please feel free to leave comments at one of the following:
This is what Blogger has said about it so far: http://knownissues.blogspot.com/2011/05/were-investigating-issue-which-is.html
EDIT: A possible work-around to the issue: http://annoyances-resolved.blogspot.com/2011/05/blogger-comments-not-working-fix-here.html
Happy Friday everyone!