Hi,

Today, we've seen the first bunch of spam that managed to have a valid 
session, hence gaining the karma points needed to overcome the negative 
points given by the other filters.

Here's an excerpt:

SessionFilterStrategy (9): Existing session found
BayesianFilterStrategy (-3): SpamBayes determined spam probability of 71.16%
AkismetFilterStrategy (-3): Akismet says content is spam
Lexeiko <[email protected]> [http://bmw.bij.pl/tuning/map.html 
#530 ...
    /ticket/2333     Lexeiko ...    91.147.96.99    1    08/21/09 15:41:49

SessionFilterStrategy (9): Existing session found
BayesianFilterStrategy (-5): SpamBayes determined spam probability of 84.86%
AkismetFilterStrategy (-3): Akismet says content is spam
Lexeiko <[email protected]> ...

etc.

I already added the link pattern that was used to BadContent, but that's 
not the best answer to the problem.
The bayes filter's weight should be probably be increased.

Also, I don't know exactly what it takes for a script to get a valid 
session, but if there's anything we can do to make this harder, we 
should do it. Ideas welcomed.

-- Christian

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