I am confused by how anyone who uses email to a significant degree could not understand that unsolicited bulk email is harmful. Sure, modern spam filtering is p

I am confused by how anyone who uses email to a significant degree could not understand that unsolicited bulk email is harmful. Sure, modern spam filtering is pretty effective, but any time a significant amount gets through, it becomes very difficult to use your email account for anything practical. It doesn't take tech expertise to understand this, nor an especially advanced or specialized worldview to understand that breaking things for other people might be ethically questionable.