community Spam List Filters (blacklist & whitelists)

The current anti-spam filters are great, but there is always additional ones that slip through the net.

Why not have a community driven anti-spam list where potential email addresses and domains can be reported for sending spam.

GMX could choose volunteers based upon their performance on the forums and reliability and to vote.

So everyone can report an email address as a spammer, if enough of the same IP / Address / Headinfo is reported it gets flagged up and the GMX or commitee review the spam messagers and decide to block that address / domain completly from GMX users.

This may sound a little overkill but it could be a good addition. It may help stem the tide.

This info could be gathered by looking at everyone's black lists and white lists to work out what should or should not be blocked.

Any suggestions on improving it ?