John and all.
I this really a problem? Just use the delete key!
I get tons of spam every day but I think there have only been a couple via
the reflector which is not worth worrying about.
The inconvenience of only being able to post from one address would be
worse, I had problems with the lowfer group and ended up getting multiple
messages due to having several accounts, much more of a pain to sort out.
Let's not worry about such small things eh? There are worse things posted on
this reflector than spam...