''The book is so endlessly complicated by details of reference and information, the interim legends become so much of a nuisance despite their relevance, that the very action of the story seems to be to become hopelessly bogged down and the book, eventually, unreadable. . . . The manuscript of The Left Hand of Darkness is returned herewith.''

http://www.ursulakleguin.com/Reject.html

New writers often collect stacks of rejection letters from publishers before getting their break in publishing, even those who become successful authors.

The moral:

* Not all critics are right.
** Though some of them might be.

* Those who wish to be successful in any endeavor must develop a strategy for dealing with criticism.

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See also CriticsAreYourBestFriends