Stanley J. Kalisch III was one well-known "despammer" with the power to block posters from multiple Usenet servers. Kalisch declared a limited form of Usenet Death Penalty (UDP) when he became offended by what he termed "spammed cascades." He initially targeted several posting addresses, followed by the first-ever UDP of a specific person, Raoul Xemblinosky (also known as Bufford L. Hatchett and other names). Previously, UDP actions were reserved for servers.
