Yeeep, I'm quite curious about this too.
I purchased about $1,800 worth of gPotatos in the last 3 months and have converted it to gem shards and then into gold...
So am I going to get banned if I transfer my millions of gold into gem shards?
Oh, and yes, I have a screencap of my purchase history from the last 3 months if it is necessary to be shown to any GM.