On Wed, 01 Mar 2006 19:43:04 GMT, "Grumman-581"
wrote in
:

... some of the trolls crosspost over many
newsgroups, so we get noise from the other newsgroups from individuals who
reply to the trolls ...

It's possible to filter out all crossposts. If there
is a comma in the "newsgroups" field, then it is a
crosspost.

You may miss some good content this way, of course,
since non-trolls do crosspost to the rec.aviation.*
groups.

Marty