I wonder if in addition to checking "allow users to comment" people who want criticsm should make the first post themselves and indicate they are seeking constructive advise and critique for the image. Myself, I no longer much comment aside from an occasional "Great!" on anything that isn't done by someone with whom I have had correspondence as I have come to the conclusion most posting to the gallery is done for reasons other than soliceting criticism. What those other reasons are I have no idea, actually I would love to know.