The message center allows for more of an anonymous interaction between members as your email is not revealed, but you still need to be cautious. Please report any messages from someone you don't know or trust who tries to get personal information from you. (Or something just isn't right about the exchange). You can report it by forwarding the message to BinkyBunny or Admin (or any of the forum leaders as they will then let me know).
Also report any interactions that you feel are harassing, pushy, argumentative. Rules of forum etiquette still apply to messages. If you do not want to hear from a member any more, ask them to stop messaging you. If they do not, please report them.