On 12 Oct 2010, "David Hare-Scott" wrote in
rec.gardens:

Please tell us how that makes any difference to the content of
what is posted.

Most well-run news services filter out much of the spam, and a decent
newsreader will allow you to filter out much of what's left.

Most of the spam originates at Google Groups itself, and they refuse to
do anything about it. If you use their service, you are supporting
their support of that spam.