" e-mail spammers are actually doing us all a favor by essentially forcing us towards methods better than e-mail for communicating."
yeah, I hear you. I'd love to move away from emails entirely. And mail for that matter.
But just like mail, it's still used for really important (usually government-related stuff like taxes, DMV, Medical / insurance companies). Hence, gotta maintain a mailing address, that's not a P.O. Box. At least in the US. Can't abondon it.
Maybe other countries have a better shot at moving to the better tech.