Is a rouge cancel bot on the lose in the usenet?

From: Greg R (webworm12_at_yes.hotmail.com)
Date: 03/17/05 

Date: Wed, 16 Mar 2005 20:31:30 -0500

Is a rouge cancel bot on the lose in the usenet?

I have notice a a lot of cancelled messages in the computer and other
general usenet groups. I am not talking about the bad groups.

It even deleting messages on severs that don't support anytime of
cancel message.

Greg R
Post also in the grc news group as well.