I think spammers are like the villains — in almost any movie ever — who always have that one fatal flaw that’s so obvious to everyone but themselves.
“Why sure, Mr. Bond, I WILL tell you the intricate details of my evil plan — because you only have moments to live!”
[blah blah blah]
“And now that I am done telling you EVERYTHING, let me just leave your fate in the hands of this machine (or my henchmen) while I go attend to more important matters than making sure you die.”
Spammers are a lot like that — except their one fatal flaw is being unable to make anything they write not look like spam.