Community Shared Blacklist

I get hundreds of spam trackbacks every day, and it can only be assumed that I am not the one and only person the spammers hit. Could a community shared blacklist like the one in b2evolution be implemented? When I used b2evolution for my blog, no spam ever got through the filter because instead of being the sole person responsible for cataloging ever spammer on the internet, all b2evo users can share the same blacklist. If there is anything like this already existing in the spam module, I can't find the configuration page for it.

Ideally, every time someone posts a trackback, the spam module would check a shared community list for the IP address and block known spammers completely. As it is now, if I want to block spammers completely before they post, I either have to keep thousands of spam trackbacks in my site database, or I have to manually add thousands of IP addresses to my .htaccess file. Surely there's a better way?