I know. And then you get the debate over "Well, a review of OMG I LOVED THIS doesn't tell me anything!" vs "Be glad you got anything!" vs "Be glad you got something positive." The relationships of criticism are complicated, certainly.

But I still think that constructive criticism is one of the best gifts that can be given, whether it's to a fanfic or an organization - or an individual. It's a tough one, but it really means somebody cares.