Can't get more basic than that, eh?
Unfortunately, we cannot really stop people from harvesting email addresses from the lists and the associated archives. Such actions do, however, violate our Copyright / Terms & Conditions ... and will be dealt with on an individual basis.
If you have questions about this policy, or suspect your email address was inappropriately used, feel free to contact David Gibbs (email@example.com).
See http://www.midrange.com/privacy.htm for the latest information.