An author named Michael D. Scott is doxxing Amazon users in the List of Authors Who Do Not Want Anonymous Reviews thread of the Top Reviewers forum. The doxxing starts on page 64.http://www.amazon.com/Michael-D-Scott/e/B004UU1A0A
As far as I know, he's not on Goodreads.
Stay safe, y'all. Fingers crossed he won't invade your privacy and reveal your identity.