Is it fair to say the definitional confusion bothered you more than the interesting aspects (I'm presuming that part "b" above is more interesting) pleased you?

Is it fair to say the definitional confusion bothered you more than the interesting aspects (I'm presuming that part "b" above is more interesting) pleased you? If I were to guess... I'd say you (and many people, including myself, often) are weary of people redefining words in a way that seems wasteful, distortive (such as 'stealing' words that formerly had clear technical meanings), purely commercial, or self-promotional. For me, at least, the intent of the redefinition matters. But I detect no self-interest or obvious neglect in the case of the arithmetic primes.