[hashcash] Re: PR Problem?

On Mon, Nov 13, 2006 at 08:59:44AM -0500, Eric S. Johansson wrote:

> that's a really good question.  Would be presence then absence make a
> huge difference in a content filter?  I wonder if I should make a
> filter independent white listing daemon to make it easier for people
> to include friends white listing in applications like bogofilter

It depends on the filter. I'm not a math whiz, so I don't know how
statistically significant an "X-Hashcash-Verified: Yes" header would be
in the grand scheme of things. Certainly, bogofilter would recover with
some retraining regardless.

I think a whitelisting demon might or might not be valuable, depending
on how one uses the stamps. Where it probably has the most value is
either on the sending side (cheaper or no stamps based on the status of
the recipient), or on the MTA side where saving CPU cycles on
trusted-but-high-volume senders/recipients might be valuable.

In a naive sender-pays setup, I'm not sure that the cost of validating
received stamps is high enough to justify inbound whitelisting. And
because the selling point to the end-user is that minting stamps makes
your email look more like ham, I don't see how whitelisting your
recipients from the sender side (e.g. not minting stamps for friends) is
a win.

In a more complex scheme, though, that would probably be very valuable.
How do you envision the whitelisting working?

-- 
Unabashedly littering the information superhighway with detritus like
this for over 15 years now.

Other related posts: