This tool was awesome, for the first 4-6 or 1 year that it was released, Shaiya Nemesis fixed it quite fast, and the other servers did it too. It was a really nice tool. It worked perfectly you just had to keep some rules in mind like no duping more than 4 times or keeping the dupes in your inventory would make all disappear.
If you dupe a top 4 times, you had to keep all 4 in different characters, and gold bars you had to sell them goldbars and buy them again so they dont disappear and not be trackable.
But now it is fixed in almost all servers, I haven't been able to find any that still dupe god works. Too bad :(