[cap-talk] can one use capabilities to stop spam without identity?

[Patroklos Argyroudis]

On Sat, Jan 20, 2007 at 09:42:26PM +0100, Matej Kosik wrote:
> is (I believe) the only reasonable solution that might work. It is
> possible to enforce such an security policy where you charge senders for
> sending you a mail certain amount of money. You then review/read your
> mails and money connected with non-spam-mail is returned back to the
> senders. This of course does not prevent unsolicited mail (because you
> do not want to prevent it) but you are compensated with appropriate
> amount of money. How much you will charge for a mail (you might even
> discriminate among people you already know) is up to you.

A similar system has already been proposed; see:

T. Loder, M.V. Alstyne and R. Wash.  An economic answer to unsolicited
communication.  In ACM Conference on Electronic Commerce, May 2004.
(http://citeseer.ist.psu.edu/loder04economic.html)

Regards,

-- 
Patroklos Argyroudis
http://ntrg.cs.tcd.ie/~argp/