Answer:
   
   There are two ways to cope with it. Some escape to moderated groups,
   and either never or only periodically check in with their unmoderated
   cousins. Others continue to "fight the good fight" in all forums.
   However, the comments below apply to filtering of both moderated and
   unmoderated newsgroups.
   
   The approach to take depends on your particular newsreader and setup
   for news. Some provide kill or filtering mechanisms, and some do not.
   Those that do not (if this information is wrong, please inform the FAQ
   maintainer at [5]maintainer@scjfaq.org) include Free Agent, the
   Netscape newsreader, and the web-based [6]Deja and [7]MailandNews
   readers. Most Unix-based readers provide filtering mechanisms, as does
   the Agent reader. [Both Agent and Free Agent are available at TUCOWS,
   [8]www.tucows.com]
   
   For most of the Unix readers, you need to use a "kill file." It's an
   algorithm which scans articles and eliminates those meeting criteria
   you specify. If you read news with "rn" or one of its offspring, you
   create a file News/soc/culture/jewish/KILL consisting of lines such
   as:
/talk.politics/h:j      # skip all articles cross-posted to talk.politics.*
/J. Random Luser/h:j    # skip all articles written by J. Random Luser
/egitimate/j            # skip all articles with "egitimate" in Subject

   If you use rn, trn, or any of its varients, you can find a useful
   explanation of how to make a kill file in the Killfile FAQ. This is
   available on rtfm.mit.edu or ftp.uu.net. The URL is:
     * [9]ftp://rtfm.mit.edu/pub/usenet-by-hierarchy/news/answers/killfil
       e-faq
       
   This can be retrieved by sending Email to [10]mail-server@rtfm.mit.edu
   with the following line in the body of the message:
        send usenet/news.answers/killfile.faq

   Other newsreaders implement this feature differently. For example, the
   "gnus" package from within Gnu Emacs would have a killfile like:
        (gnus-kill "Xref" "talk\\.politics")
        (gnus-kill "Author" "joe_user@site\\.com")
        (gnus-kill "Subject" "\\blegitimate\\b")
        (gnus-expunge "x")

   If you use Gnus, you can find out more information on the killfile
   facility by typing M-x info within gnus.
   
   If you use the newsreader nn, James Kahn wrote that you can just type
   K (that is, a capital K), and nn will then prompt you for various
   things, such as whether to kill by name or by subject, etc.
   
   If you use a different newsreading program, you may be out of luck. In
   that case, your best bet is to ask someone at your local site how to
   create killfiles, or read the manual about your newsreading program.
   You might consider writing a perl script to preprocess your news for
   you.