Sharing the spam lists for the win. I get 0 spam on the bigger of my websites because all the garbage is filtered at the application level of course, but the spammy rat bastards were still hammering my precious little server with TCP connections. Enter a voting system that includes stopforumspam API, among other things. Every minute, so as to not cause any inconvenience to the forces for good, the script collects the consensus from several services on who of the current TCP connections is a lowlife spammer scumbag, and sends them straight to the iptables drop hell where they belong. Many thanks to the noble proprietors of services like akismet and stopforumspam for letting us rid this world of the spammer trash and making it a better place.