The one thing that makes me not believe that there was ever a bug or possible way to exploit it is because of the entire fact that apparently when I asked around several people in school, Militaries. And asked people of 774 and even other hackers in graal and exploiters. Nobody even heard of such a thing. How could a bug that allows people to refund heads for infinite gralats, Be not even heard of by anyone that would've been the most likely to know of it? It just makes no sense.
Secondly, why would you create upload tokens if this same bug could be used to create infinite upload tokens? I mean more people would probably use it to get uploads opposed furniture and other items since uploads are more valuable than furniture items