YaBB is about community and communication. And there are plenty of ways to communicate: Posting on the boards, Instant Messaging, E-mail, ICQ, AIM and YIM. Of course, all methods of communication are only available to members. An exception is when the Forum Staff decides to allow guests to post on the boards: in this case all unregistered users are NOT allowed to do is viewing the Member List and sending Personal Messages to members.
While e-mail is a good way to correspond privately with members, it
has several drawbacks: You must open your e-mail application to write
and send the message; the recipient must open his/her e-mail application;
check his/her mail and your message will mixed in with all the other
mail and it can take sometimes several minutes to an hour for mail to
reach the recipient.