Re: Proposal to define a simple architecture to differentiate legitimate

On maandag, sep 8, 2003, at 00:08 Europe/Amsterdam, Johnny Eriksson 
wrote:
> > > It is not immune to spam
> > Fixable with authentication.
> no.
As each individual news article is piped through a relatively small 
number of servers in the "core" of the distribution system, it becomes 
relatively easy to blacklist known offenders. That is, if they are 
recognizable as such. This is where the authentication comes in. The 
tricky part is optimizing the time/difficulty it takes to blacklist vs 
that of obtaining a new identity.
Also note that with usenet news, unlike email, it is possible to remove 
spam that has entered the system, limiting the audience that sees the 
message and thus the effectiveness of spamming.