wtf, some inaccurate answers here!
To0 founded USAWarez.com in 2006 (as a forum, as opposed to the old CMS), where it stayed at fairly low traffic until mid-2007. Through various methods he obtained large amounts of traffic fast, and with a solid brand, and brought up the website to 40K members earning a good amount from VIP donations ($200 - $300 per day). FBI took down USAWarez.com in October 2007; I remember this time very well as To0 and I had some disagreements at the time.
He returned in February 2008 to make USAWarez.net, and built up a nice following again. However already by mid-2008 he had once again shut down the website pending personal issues.
There was a controversial deal that occurred between To0 and Oz187 resulting in Oz only receiving USAWarez.net, and To0 once again starting USAWarez.com (December 2008 - early 2009).
To0 is currently in federal prison relating to the original takedown, and will be around shortly. Used to know the guy very well, so will be good to see him back.
Regarding WarezUSA - guess you could say it's an imitation (as it was started well after the original USAWarez). Nada to do with the glory of the original site.