i've never felt inclined to post pics of my gear and it doesn't occur to me to photograph the gear that i audition in a store. i've just assumed that posting my impressions at this forum would suffice.
I'm sure the vast majority of people here don't take pictures of gear in stores either. Can't say that I do on a general basis ... maybe if it's something very scarce or I'm getting to audition it earlier than might be expected (e.g. before its official release date).
But for me personally when posted impressions are either significantly at odds with what is generally being reported, or when the circumstances that they come about from don't really add up or are contradictory then, absent pictures, I'm going to be more skeptical. Doesn't mean anyone else has to be, but it is how I personally look at things.
I'm not talking about differences in preferences either ... I expect everyone to be different there.
There's a strong degree of consistency among impressions posted about the LCD-4 and how it portrays music. Then there are a coupe of outliers. It's the outliers, coupled with interesting chronology or inconsistency in the story, that make me discount those impressions and, often, that poster.
For example @dan.gheorghe's impressions are super easy to take at face value, with or without pictures. We may not share preferences, but his general description of what he's heard is very close to what others have said. If his story changed every time that wouldn't be the case.
But I read things the way they work for me and don't expect that to be the same for anyone else.
Still wondering why finding out where a cable was bought is such a mystery though ...