The problem with blacklists and false positives

[Amedee Van Gasse (ubuntu)]

Brian McKee schreef:
> On Wed, May 6, 2009 at 1:50 PM, Lorenzo Taylor <daxlinux at gmail.com> wrote:
>> The problem I have with unsubscribing repeat offenders who consistently flame
>> others or get nationalist/racist/inappropriate flame wars started is that there
>> is nothing to keep them from being able to subscribe a new email address and do
>> it all again.
> 
> There's nothing sensible you can do about this - identity on the
> internet is slippery
> (and many people prefer it that way)
> 
> OTOH, it would be one pain in the neck vs say four list admins.  I'm
> sure the problem poster
> will give up resubscribing before the admins give up blocking him/her.
> 
> Filtering by automated content matching will not work.  Too many false
> positives, and too many
> ways around it.  How many different ways do the spammers discuss the
> size of your <xxx> ?
> 
> Brian

What are you going to do if the topic of a mail thread is spam and spam
prevention, and you are discussing a particular spam incident?

I think spam is a valid subject for Ubuntu, for example someone who
installs spamassassin and wants to know why a certain spam didn't get
tagged.

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