Thanks to a member of this group sending me a note, I realized that you couldn't leave me a comment if you didn't have a blogger account. So I changed my settings and now it's good to go. If you have blogger, go to settings > comments > Who Can Comment? (select everyone. to avoid SPAM comments, activate the comment moderation (you have to manually approve your comments) and activate the word verification for comments option).
Just thought I'd share a lesson from this little experience!