Because it got very expensive and the site added an affiliate system.  By using the affiliate system Stunna only pays for the traffic he gets at the site, it is much more of a partnership type situation.  He kept a few folks on for at least one more month, but that month is coming to a close.

It has been a great run but I expect the program to be fully shut down soon.  In my opinion these programs are expensive to administer, subject to massive abuse, and of uncertain value, though I am extremely grateful for them.

Good Luck.