NoNameNoCity

Dear Moderator: I have a question regarding "netiquette"on the board. Several weeks ago, I got an email from someone referencing a post I made on the gamesbids forum. I don't know how he got my email address (He wanted me to sell him my 112th IOC session badge). I am anonymous on this board for a reason and I am not in the business of selling my IOC memorablilia (that way if it had my name on it, I would no longer be anonymous.) I did not appreciate being solicited like this and wonder what controls can be done to prevent this in the future. Many thanks.