3.22 Is there any way to get rid of a frequent poster's posts?

If you wish to remove a frequent poster's posts (ie Joe Bloggs) and most
of the related followups and if you are running rn, put the following
commands in your kill file:

/Joe Bloggs/a:j
/joeb@anyplace.com/a:j

If you are using Gnus (an Emacs-based newsreader), type "M-k" in the
Subject buffer of the relevant newsgroup to expose the killfile,
insert these two lines into the killfile:

(gnus-kill "From" "joeb@anyplace.com" '(gnus-summary-kill-thread nil))
(gnus-expunge "K")

and then type "C-c C-c" in the killfile buffer.  From then on, you
will not see any thread trees rooted at an article from Joe Bloggs.