with referer spam, it's no longer an issue with just PixelPost. i can post some excerpts of my Apache logs but that'll just be pointless. system administrators and web hosting customers both have to be proactive. unfortunately, one has to filter a few sets of IP-range (cidr) originating from China, Korea and Mexico to cutdown the load. and that's just the beggining and for most, it's not an option. in addition to Bad Behavior, Referer Karma, i also have mod_security filters and special Apache directives to redirect referer spam to a separate log file for analysis. even then, it's still not enough. =)