Oh, the one posting a picture or comment is looking for feedback, even it it's only a one word comment. We that have been on the board for a while seem to see the same things over and over, but when we post, we (I) still look and see if what I asked for in advice or color choices or showing off something that took hours to make, the feedback is a reward, an answer or opinion that is considered.
The experience on this board is priceless, there is always someone that has experienced it, seen it or has a solution or at the least a Oh, wow that's pretty!
So comment, it may brighten someone's day.
Tcharlie