http://www.textadventures.co.uk/review/726/This was the original instance that I saw. You can see that the author and one-and-only comment are the same person. She uses her exact first initial and last name in her email for the alternate account.
This one, since it was in the sandpit and had no other comments, I felt wasn't worth getting in a tizzy about. I'm just sensative to this when I think someone is doing this because I have seen many examples of this on Amazon.com - and it gets to me (and I feel like it should - I don't regret getting upset when people do this).