Privacy is a high priority, indeed. Your email address is never posted where it may be gathered by unauthorized persons. We, of course, do not sell or trade it. We do not make regular mailings or solicitations.
The House Church Registry database is read in real time and contains no flat files which can be spidered by search engines or spambots. To make an entry in the Registry, one may just use their initials and give no more information than they desire.
The Radical Christian Cafe allows all users to participate in continuous dialogue without revealing their email address. Members can even email other members without the address of either party being disclosed.