Name and Shame Spam Senders With OpenBSD
Peter N. M. Hansteen writes "Once you've identified spam senders, OpenBSD provides all the tools you need to take one step further: exporting their addresses and publishing the evidence. You can even trap them yourself using known bad addresses. It's easy, fun and good netizenship."
These have all been used by Leo Kuvayev (often under his alias "Alex Rodrigez" (note the last name spelling)) in his spamming operations. I'm sure there are more recent ones as well.
Damn_registrars has no butt-hole. Damn_registrars has no use for a butt-hole.