Don't even think about doing it, unless you are so rich that you don't mind losing money. The way that they keep sending you Emails is they just use a different Email address to send you the messages. How they find your Email address is simple, all they have to do is go to the member directory and type in any name or a partial name and they get a whole list of people or they could be purchasing an Email list from a company.(there are many sites that you may have signed up as a member or if you have bought something online) they sell your information to companies that in turn sell lists in bulk. It is very simple to get a persons Email address, you may consider removing yourself from any directories which you may be listed in, such as the Yahoo directory and when you join a site or make a purchase, be sure that you read their privacy policy to find out what could potentially happen to your personal information.