I haven't reviewed stories here, but in general reviews fall into two kinds: reviews for your writing skills, or reviews for the content.

Obviously if someone doesn't like your content there is the chance they write a bd review, but frankly I think that's very immature. If I don't like the actual content of something I'm reading, I stop reading it, not bitch at the author for not writing the exact story I wanted to see.

Comments on writing structure tend to be far more useful really. Hopefully most people keep that in mind when trying to offer constructive criticism of a piece.