Hmmm... me neither, ha ha
I guess I am not making much sense until I have my morning coffee.
What I was trying to say is that you need to login into your Account, navigate to the blog post that has a spam message and click on "Hide" link beside that message. That's similar to delete. Basically you can "Hide" and "Show" any comment left on your blog posts or on your product listings. Once you click "Hide", nobody will see that comment, except you. Hope this makes sense.