Wes writes:

Grant Erwin wrote:


I just killed all postings that cross-posted to sci.crypt. ZAP - no more sporgeries.

How exactly did you do that? What newsreader do you use?

GWE

Based on headers http://gnus.org/ Unless you are into *nix not likely
something you might like. Xnews has something called scoring that
Sittingduck on A.M.C. mentioned. If I understand it correctly you can award
a high score to a crosspost to a particular group and filter on that.

Yes, the filtering I mentioned (in my case, using the x-ref header)
requires you to be using the One True Editor -- emacs (and reading
news using the gnus package).