On this board the email addresses cannot be seen by anyone other than admin (i.e.me!). There is an extra module installed which gives us an internal emailing script which lets registered users send each other email but it comes from the board email address not the user's address, so to reply you have to reply back via the board. That way folks can contact each other whilst still protecting their email addresses - the same way you can with the eBay message centre. Guests cannot see the email buttons at all so there's no worries about spam from them.
Because it needs to be disabled for the internal system to work properly, the ability for members to hide their addresses no longer works, but as no-one can see them anyhow there is no loss of privacy. Hope that all makes sense.
