User blog comment:Phoenix Flight/Commenting and other things/@comment-26004669-20150216005301/@comment-8248793-20150216010158

Constructive critism isn't just to critisize the writing. It's to help improve the story. For example, we would say: "I like your story, but I think you can add a little more description to make it even better".

It's not just: "You need more description." <-- that's not constructive critism.