It's a good point that you raise Mark. It's well known that Ronnie Barker sent in scripts under the pseudonym Gerald Wiley which, the two Ronnies did to great success, to avoid pre-judgement of his talent. In 2006, Flickr user Andre Rabelo submitted a photo to the group pool DeleteMe!, a group whoes members vote on photos to vote out any that aren't "incredible pictures, amazing, perfect". The photograph was by Henri Cartier-Bresson. Their verdicts weren't very complimentary to say the least.
http://www.petapixel.com/2011/07/13/...nline-critics/