I have had trackbacks turned off for over 2 months and last night as a social experiment I put the CGI file back up on the server. After 6 hours of being back online here are the preliminary results.
First Spam Trackback Ping: 9 seconds after upload
Maximum Number of pings per 60 Seconds: 328
Sustained Average Spam ping Rate per Hour: 12,660
Total Ping Rate per 24 hours: 303,840
Total Ping Rate per 30 days: 9,115,200
This is after I have had the mt-tb.cgi file removed from the server for over 60 days! Their is no doubt in my mind that Trackbacks are dead and will never be able to used effectively. Not to mention the sustained load and traffic that is hitting my server.
The weblog developer community has failed us miserably in the fight against this.