Nobody suggests that you cannot make statements such as, "The President has zero knowledge on every important issue." However, in the context of cryptography,

Nobody suggests that you cannot make statements such as, "The President has zero knowledge on every important issue." However, in the context of cryptography, privacy, or security generally, yes there is a need to avoid muddying the waters by appropriating terms with specific technical meaning. We need to have a common agreement about what words mean before we have discuss anything.