Re: [Asrg] FeedBack loops

["J.D. Falk" <jdfalk at returnpath.net>]

On 12/11/2008 12:49, "der Mouse" <mouse at Rodents-Montreal.ORG> wrote:

>> If a statistically valid sample of an ISP's users (as processed by
>> their own user reputation systems) think something is spam, why would
>> that ISP disagree?
> 
> Ummm...maybe because they know most end users don't know the difference
> between spam and other forms of unwanted mail?

Why should that matter?  It's unwanted, and it got reported, and it's up to
the ISP to decide what to do about that.

> And when it comes to "this is mail we want to block", they should.  But
> when it comes to "this mail is spam", they shouldn't, or at the very
> least should apply some local intelligence by someone who _does_ know
> the difference.

That's what reputation systems do.  Some of them do it well, some do it
poorly, but they all do it much faster and more accurately than the old
"which /24 has pissed off the sysadmin today?" method of spam-blocking.

> One of the things I've noticed is that far too many people - on any
> side - seem to lose track of the fact that mail can be non-spam and
> still be eminently blockworthy.

Maybe because they don't care if there's a difference between spam and other
forms of unwanted mail?

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