There's no shared understanding, just a snarky expert claiming (in effect) "I know better than all you simpletons but I'm not going to share". At best it's incr

There's no shared understanding, just a snarky expert claiming (in effect) "I know better than all you simpletons but I'm not going to share". At best it's incredibly poor behavior. At worst it's the behavior of someone who doesn't actually have a defensible point to make.