I'm not a professional cryptographer, but I _am_ really interested in opinions of experts in the field and I do have a lot of prior experience with crypto (the actual kind, not *coin). From my point of view, I just don't see what's the fuss is all about.
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.
