I am not much in favour of adding categories of person posting the image. If it a self selected category then I think in our minds we are all a little bit in advance of what we are in actuality. It is one of the main reasons for people lacking inspiration or having an artistic block imho. They see the shot in their minds and the reality is often different, it is human nature .

I do think if people want genuine critiques they are being unfair if they do not start the whole process off by stating something about the shot, why they took it and what they are hoping to show. The example of the lady above would be an excellent example - and the image would deserve being critiqued in a far different way to the person who is rudest of health and taking shots using top of the range pro equipment. I do try from what I know of the regulars here to gauge my comment as to the person who has posted it. I do expect far more from an image if I know the person has experience and/or has used pro equipment to the beginner with a compact cam.  
Some may consider artistcally the image should stand on its own without explanation I think this is rarely the case. A write up from the person posting would start the whole critique process off by giving something to the viewer instead of passively sitting back and waiting for the viewer to do all the work.

And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies live;
Their heads are green, and their hands are blue, And they went to sea in a Sieve.

Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html