BAR-CODE: I know this isnt particularly about my comments, and this post isnt about your images  neceesarily, but some points for consideration: 
-Some people post  a lot , maybe an image a day, noway can I post a comment on each - actually takes me some time to consider an image.
-Some people post a series of similar images, in which case I think if I comment on one I have done my part.
-There should be some elements of mutuality.  Not neccesarily that each image I comment requires  a comment back,  but if I get none at all I figure it may be neccesary for me to stop too.
-I have this feeling if you are good and/or experienced its a bit intimidating for beginners or less confident people. Not  that I think I'm that good at this,  but I do welcome and would encourage any comments, not just of "experts"

• This is just about 3 weeks since I joined, still only about half of the group members added me to their list.  Even if I commented on their images.  I was just about to send messages to these people to explain that I will drop them from my list in a week or two. I dont want to offend anyone by just removing them with no explanation, but it has to work both ways.

I do hope the group isnt winding down, the comments I'm getting, and comments are read for other people's images  are realy helpfull.

"I paint that which comes from the imagination or from dreams, or from an unconscious drive. I photograph the things that I do not wish to paint, the things which already have an existence."
Man Ray, modernist painter
http://artpearl.redbubble.com/