 Cancellations were rarely performed at the time, because spam was not the problem it became in subsequent years.The Serdar Argic posts suddenly disappeared in April 1994, after Stefan Chakerian created a specific newsgroup (alt.cancel.bots) to carry only cancel messages specifically for any post from any machine downstream from the "anatolia" UUNET feed which carried Serdar Argic's messages.This dealt with the censorship complaints of direct cancellations, because carrying a newsgroup was always the option of the news feed, and no cancellations would propagate unless the news administrator intentionally carried the alt.cancel.bots group.