I contacted support and deleted each of my already existent accounts (since I had cleared all the money or went bust) and then signed up for new ones through PO. It's a good way to get all the perks. You can do this for any perk (rakeback, other forums, etc.) but you just have to delete your cookies on your comp before trying or else you will still log as coming in from your previous link. Just a suggestion to anyone who wants the PO perks but already has an account on a site.