I think part of the reason he "falls" for it is the contents of the spam are things he wants to be true. In other cases he'd see the warning signs and know it's

I think part of the reason he "falls" for it is the contents of the spam are things he wants to be true. In other cases he'd see the warning signs and know it's spam, but with things he actually wants to be true, he would rather someone he trusts to tell him there's no way.