Bob Marion (nukescrripts.net) writes "With the collaboration between Raven PHP Scripts and NukeScripts Network the first version of NSN Abuse Blocker is now running here on this site. So far it has already caught several attacks and has blocked many ip's from being able to return. It has done this without showing a large slow down in site load time as well.".

Bob did the heavy work :). My contribution is the hackalert script methodology. I appreciate Bob and his work and highly recommend you visit his site and contribute to his work too.