Should photo-stack allow posts asking for photo critiquing? Perhaps limit to X number of images, and make the page community wiki.
Photo critique was voted to be off topic during the definition phase of the site, so I would say it should be regarded as such.
Suggestion of FAQ text:
Question: Can I post a photo for critique?
Answer: (SiteName) is not a site for photo critique. However, if you have an image that turned out in a way that you did not expect, or where you want to achieve a specific result, questions about this are on-topic. Examples of such questions include:
- "I have this landscape image and the ground is too dark and the sky is too bright. What can I do to fix that?"
- "What can I do to isolate the subject from the background better in scenarios like in this image?".