Well, I have 3 reasons for posting my system:
1) I agree that it’s helpful to know where a member is coming from if you can easily see their system. If they’re a digital, mega-watt, solid state, low efficiency person vs. a vinyl, tube and horn guy - big difference in perspective.
2) I have 4 systems and the Audiogon systems page helps me keep track of them - what the model #s are, which tubes I’m currently running, etc. Very helpful as a reference tool for conversations with other audiophiles.
3) Pride. Yes, I confess, I’m proud of the systems I’ve put together, think they look awesome in their respective locations, and I like to brag on them a little bit. And when I talk to non-audiophiles about our passion, they understand it a lot better when I pull up my systems pages and let them scroll through the photos.