I've been following the amusing exchange between R Chaim Rapoport and Prof's Heilman and Friedman over at Seforim blog. A commenter to a post about sockpuppets on the comment thread there notes that:
What you didn't realize Josh, is that Heilman & Friedman also wrote 41 sock puppet comments!
Needless to say that this is completely unprofessional and should deservedly land them in a heap of trouble.
Click on the "guest" of the second comment who wrote: "I think the Blog was the one who decided to limit posting on this", and you'll see that it's the same account which originally wrote the comment "Since this blog has not been either able or willing to post our final response to Chaim Rapoport's latest posting..." signed "Samuel Heilman & Menachem Friedman"!!!
However H & F hide their identity in the other comments by referring to themselves in third person such as:
Aren't there also a series of comments that begin with the assumption that F & H are out to smear the Rebbe?
Did you read the book? They mention the phone directory on p. 304!!