Understand that the Moderators cannot gag or ban someone just because someone complains about them. There is a good reason for this because we have had more than one instance where someone reported another member they disliked just to get them in trouble.
So..here's what you need to do in order to get them dealth with:
1. Block them so they can't send anymore messages to you by clicking on the "ignore" button under their e-mail.
2. Save the message in your "default" folder. (If you delete it then nothing can be done.)
3. Send an e-mail to the Site Administrator and let Petrarca know what the problem is. Pet can then look at the message in your folder and take appropriate action. Only Pet has the ability to see e-mails in your account so your e-mail must go to him.