[Rizla]

Tolstoy wrote an essay trying to prove Shakespeare was bad. Orwell wrote an essay in response, saying history had proved Tolstoy wrong.

And let's not forget "The Lem Incident" where Stanislaw Lem said all Western Sci-Fi authors were crap, apart from Philip K. Dick. Philip Jose Farmer was outraged!

And then there is Christopher Preist's expose "The Book on the Edge of Forever" all about Harlan Ellison sitting on the third of the Forbidden Tales trilogy. Not really a criticism of Ellison's writing, but more the fact he had refused to release the book and all the good stories he had locked down under contract. Ellison was outraged!