On Nov 18, 12:48 am, RN wrote:
The following is from Google Groups.
If they get enough feedback "click More Options at top of message and
select report message" they may see fit to block these messages.

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How can I report cases of Usenet abuse from people posting though
Google Groups?

Unfortunately he isn't posting through google groups. And even if he
was, all he would have to do is create another google account with a
different name.

The best defence is, as others have noted, to use the filtering
facilities in your newsreader. In this case he Has A Very Important
Message (as opposed to just trolling on many subjects), so the best
technique would be to filter/kill any message with a subject
containing "MI5 Persecution".

See http://en.wikipedia.org/wiki/Newsgroup_spam and http://
www.templetons.com/brad/spamterm.html if you are interested in the
history of such abuses.