"SPAM" to ancient address

So the last few days, i've been getting unwanted email from an affiliate or some other casino marketer to 2 addresses that i set up to use for my player accounts at Grand Banks, in Sep 2002. I have no record of any other email to that address since that date, until friday.

I would tell you who sent it, but it's quite likely the terms I agreed to let them sell the address. I'm just wondering who would buy an address from a 1 time depositor, from 8 years ago? Well it was a US physical address, so i guess times are pretty desperate