> Is one of the following options possible?
>
> 1) Messages from non-list members are forwarded to a worthy soul(s) for
> review before being placed on the list.
takes someone's time, that does.
> 2) Non-members who send to the list get a message explaining how to
> subscribe/unsubscribe.
i like this one, better. and including an apology, explaining that this
is an unregulated list, and we keep getting spam.
> I think that would eliminate the ads.
we can only hope....
> What is the percentage of posters who are not list members?
i think that it's fairly minimal: about one per week / two weeks.
they usually identify themselves because they want to receive
responses, and inform the list that they are not on it.
luke