By David Perel - Executive Vice President/Managing Editor Breaking Celebrity News

One of Kate Gosselin's fiercest critics has just received a hard lesson that the reality star does not forgive or forget those who attack her.

Robert Hoffman, author of the stinging e-book Kate Gosselin: How She Fooled the World, got a big surprise Monday afternoon: all of the posts on his anti-Kate web site are gone!

"I honestly don't know anything yet (about the situation)," Hoffman told Breaking Celebrity News in an exclusive interview, adding that he was "waiting for an explanation." (The posts were removed at some point between Monday morning and late afternoon.)

Hoffman had previously been silenced by two top law firms who succeeded in getting Amazon to remove his e-book from sale. The book contains reams of material found on Kate's computer hard drive, which Hoffman told Breaking Celebrity News he obtained from her trash.

In recent weeks, he has charged that she has been physically violent toward her children, detailed her seemingly endless quest for free products, accused her of using her children to achieve personal fame, stated flat out that Jon Gosselin — his friend — is the better parent, and admitted to calling Child Protective