Ay the begining?..or after you pay?...or are you saying that they  keep using trial accounts?

when you first sign up it is free for one month. after it runs out you revert to silver. they signed up every month so they just kept getting free memberships with new usernames

You can only do this twice per console.

And here is a link Major Nelson provides for Unique Users

Unique user

From Wikipedia, the free encyclopedia

http://en.wikipedia.org/wiki/Unique_user

According to IFABC Global Web Standards, a unique user (UU) is "An IP address plus a further identifier. Sites may use User Agent, Cookie and/or Registration ID." Note that where users are allocated IP addresses dynamically (for example by dial-up Internet service providers), this definition may overstate or understate the real number of individual users concerned.^[1]

Unique users is a common measurement of the popularity of a website, often quoted to potential advertisers or investors, and measured over a standard period of time, typically a month. However, Greg Harmon of Belden Research says "may overstate" is a gross understatement. Remember, it's just an identifier of a computer, not a person. And usually, the computer is identified by a "cookie" which is most often specific to an individual browser on that computer. Since an increasing percentage of people in the United States (at least) now have access to a computer at home and at work or school, one may have to divide the reported total of unique users in half. Then another increasing fraction of people regularly delete cookies from their machines—presumably both at home and at work, and yet another large fraction use more than one browser on each of their machines. This means that for a typical news site, for example, which people might typically visit more than once a day to keep up with breaking news, the reported unique users might overstate the number of different people by a factor of four. On the plus side, for those wishing to impress advertisers or investors, the reported number of sessions or visits and pageviews are probably more accurate, so that smaller group of people visits much more often and looks at more pages than the raw numbers would suggest.^[2]

@jaggedsac

i don't know how he does it but he has a new account every month, and he hasn't paid once.

^ that's what I figured!

EDit: I was referring to waht jagged posted....

Cod4 is the best game ever

Is he using a credit card and then Cancelling payment...Becuase I think that would ensue a cancellation fee...Ask him....