[flagged]
It's a really old meme.
If you’re not familiar with these things, the keyword is FUSSP (Final Ultimate Solution to the Spam Problem).
(There’s also the problem of senders aggregating messages from untrusted parties, so that reputation is always a tricky balance. For example, I have four spam messages from gmail.com this month. When I’m not getting bursts like this marketexecmail stuff that started two weeks ago and will probably stop within another couple of weeks, I find that at least a quarter of my spam messages come from gmail.com, outlook.com or hotmail.com; in January, it’s 12⁄46, and at least four more are from other general-public domain names that I recognise.)