[joeclark77]

Years and years ago there was some talk of having a "postage stamp-like" fee to send and receive e-mails. Enforced by the recipient's server, I guess. That way spam and low-quality memo-writing would be discouraged. Instead of monetary points it could be karma points or something. This didn't go anywhere 10 years ago, but maybe the time is ripe for it now. People are a lot more comfortable with micropayments and there's a lot better infrastructure for the necessary communication/negotiation between sender's and recipients' email.