It's yet another case of "I know/do X in my context, therefore anyone who doesn't know/do X even in another context is an idiot". (And yet, somehow, X is also a

It's yet another case of "I know/do X in my context, therefore anyone who doesn't know/do X even in another context is an idiot". (And yet, somehow, X is also an amazingly hard-to-acquire skill that should bring immense rewards to those like the speaker/writer who claim to have mastered it.) Such fare is neither curious nor newsworthy, but seems common.