So, yeah, we're getting hit from all over.
Spammers, right now, are greeted with this when trying to perform a Trackback. The message isn't what is important, it's the
sleep in the code there slowing down their bots. Unfortunately, this will do little to dissuade them (it's not like they're hunkered over their computer watching the return status of each of their controlled zombie computers' requests). But it makes me a little happy.
Throttling will come next. Along with some other measures.