He's still sitting HU and still cheating people, although not as blatantly. Global still refused to do anything. This tells me it is one of two scenarios:
1. He's being protected by Global, likely due to a gambling problem, and he spends a lot on their casino
2. Their security team and backend are incapable of detecting cheating, even with mountains of evidence.
I know they used to be based on CUBEIA software, and then rolled their own a few years ago. It is possible that when they did this, they screwed their backend system so badly that they can't detect things like superhuman play, or can't review hands properly on the backend.
Either way, don't play on Global, especially HU.