sporgery
[portmanteau of ‘spam’ or ‘spew’ and ‘forgery’.
Massive floods of forged articles intended to disrupt a newsgroup.
Typically these have reasonable-looking headers but complete gibberish for content, making the legitimate articles too difficult to find.
This tactic has been most notoriously used by the Church of Scientology to disrupt discussion on the newsgroup alt.religion.scientology
, but is unfortunately not by any means confined to that group.