[2] The war was characterized by posters from one newsgroup "crapflooding", or posting a large volume of nonsense messages, to swamp on-topic communication in other groups.
In response, the Meowers used tools like Deja News to find the favorite newsgroups of Usenet posters who criticized them and invade those as well.
Grillo also maintained that his gibberish was absolutely not off-topic to the subjects of the various newsgroups, and that his postings, however incomprehensible, were his heartfelt and valid statements regarding each of those topics.
In yet another series of incidents reported in news sources covering Usenet issues to be caused by Meowers (or, at least, to parties claiming to be such), floods of forged control messages (special posts used to create newsgroups, cancel individual usenet posts, and so on) caused the creation of hundreds of oddly-named newsgroups to appear at many locations.
About this time, other Meower incidents included Fluffy the Cat—a parody[4] of a Harvard student's[5] pet[6] and self-proclaimed owner of Usenet—announced the creation of news.admin.cascade.
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,[9] followed by the first-ever UDP of a specific person, Raoul Xemblinosky (also known as Bufford L. Hatchett and other names).
As Usenet aged, and the morphing of e-mail addresses and de facto handles evolved, Kalisch ran into technical obstacles in declaring UDPs against individuals.