I can't tell if people are being deliberately dense as a way of punishing me for having a critical opinion, not reading the rest of the comments before responding to me, or genuinely do not understand what I am getting at.
A hallmark of a nefarious email (particularly scams but some sales attempts) is that they aim to deceive you. Humans famously have the capability of lying. Someone telling me they are _not_ selling something or scamming me doesn't actually tell me what they want, and it does not provide me with enough information to know that they are not, in fact, scamming me. It just lets me know they don't want me to think I am being scammed.
A hallmark of a nefarious email (particularly scams but some sales attempts) is that they aim to deceive you. Humans famously have the capability of lying. Someone telling me they are _not_ selling something or scamming me doesn't actually tell me what they want, and it does not provide me with enough information to know that they are not, in fact, scamming me. It just lets me know they don't want me to think I am being scammed.