Well, I like honest reviews. So if I wanted to send mine there, that's what I'd want. And I would think, if people were submitting their work to that kind of site, they're leaving themselves open for all the constructive criticism they should get. Usually, the people who would be offended by constructive criticism are happy with the "OMGz, you roxors!!! update!!!" reviews and wouldn't have any interest in someone taking that much time to examine their story.
Just putting that out there.