The user weah has been deleted. As far as I know the message was sent using the website/forum message system and the members database has not been hacked. The spam message mentioned monica. If you have had any other spam from the website via e mail or message system please let me know.
Note the website message system can be set by users to also send an e mail notification automatically when they are sent a new message on the website, this is done by the website not the spammer or whoever is sending the message.