I recently had an incident through sideline swap. I put an offer in on what looked to be a barely used glove, seemed like a pro return with practice palm, wanted to give that a try. I received the glove, and what was in the box was not what was pictured. The nearly new looking images must've been before it had been used at all, because what I had in my hand was well loved, not to mention the smell (which wasn't bad, but definitely made the whole thing worse in my mind).
So that said, if you're selling gear, post current/accurate pictures so that everyone has the same expectations of what's being transacted.