Gold method, Explained

So! The method!
When you don't buy gold, there is like a door, picture it like that, that is closed. This way you can't trick the server that you bought gold, since this "door" is closed.
But, when you buy gold, this "door" opens.

Now listen, when you buy gold, you pretty much use an URL to do that. And you may be thinking, well wtf is that url?
This is the secret key factor you need to know. You can go in the appspot /getoffers and insert your info. There, it has a link extension for 500 gold. Buy 500 gold, and spam that link.

HOWEVER this method was indeed patched. If you go on the site now, it doesn't give you the working link. But trust me, you can still get the link, which im not going to reveal how for whatever reason.

You see, when this "door" opens, it stays open for a couple of seconds so the server can process the payment. If you sent the same link of the payment A BUNCH of times, USING THREADS, AND from multiple pcs, you can get extreme amounts of gold.