Out of the many times I have commented on pictures, virtually all of the positive comments have been mentioned by the OP in some way. OTOH, if I make a comment that describes what I see as a failing in the picture, often the OP will not respond at all. This happens most often when there is a landslide of 'attaboy' responses and I post the sole negative one. On the odd occasion the OP will respond with a burst of anger as if I had violated some sort of gentleman's agreement not to mention the awful color or terrible composition. What do you expect when you comment and what do you do when you post and get comments?