Nah, the scamscum would just learn to filter that out.
Yep. Spammers utilize lots of technology on their side, also, which will filter and narrow down to the actual "targets" quite effectively. Replying to spam usually results in just being put on more lists and getting yet more spam. Personally, I report each to:
https://spamcop.netLess effective than some might think, yet more useful than others believe. It does help some, and it feels like revenge (and that is the important part).
Education is the only real fix.
Indeed. As an Email admin, I can't express just how astonishing bad the spam to "ham" (good Email) ratio really has become.