Personally I would want constructive feedback for my writing as I want to be able to do the best job I can and develop as far as I can. Even if all I ever did was publish to a free site such as this I would still want to improve on each and every story I submitted and feedback is what I would need to do it.

I see some reviewers do some very harsh reviews on authors and sometimes it seems to me that while they are using the grammar and spelling as the reason for a bad review it is really the content of the story they hate. When I think about a review I try to be objective and give the kind of feedback I would want to receive to become better.

I have seen some authors ask for the type of reviews they wish to receive, critical, all comments welcome or please be gentle with my baby. Haha perhaps this is something that can be incorporated into the submission process so that reviewers have a direction in which to go when they are doing one for a story.