I like it when people say when and where the pictures were taken and what the subject is. For curiosity's sake, but also for research purposes. Looking at your (Cavey's) picture of NF of Buckner next year might give someone an idea of what to expect in late season (assuming similar snowfall yadda yadda yadda)...
I think people often fail to include this info because, 1. they are lazy, 2. they enjoy other people guessing what the pictures are (a form of chestbeating?), 3. they don't know.
The last one is the only reasonable excuse in my opinion, though I might be guilty of number 1 on occasion.