Welcome to WebmasterWorld Guest from 188.8.131.52
Give him some emails and let it rip, I'seen some autogenerating email address scripts out there... :).
As a matter of fact, I'd use any email address you can find from the service hosting the little bugger so they know he's spamming.
You guys are evil – love it.
Currently working on implementing incrediBILL’s suggestion about feeding back UA/IP/unique_id so I’ll probably add a few bogus e-mail addresses to that page. Maybe even some from spampoisn in this case.