bandwidth consumption

One of my low-traffic sites was hit with significant trackback spam. We found out when we were notified by our hosting provider of a significant bandwidth overage for the month.

The spam module was doing a great job of keeping the spam out, but due to the flood of trackback requests during a sustained period, we experienced a massive increase in traffic.

I have now disabled trackbacks on that site (ti's the only site I had set up to allow trackbacks) and have enabled the spam module's "Trackback Black Hole" module so that all trackback requests are dropped immediately.