As kickazz006 said, it is because you went over the gold cap, which simply means you have been, at one time or another, a rich son of a bitch If anything this is like seeing a OMGIHAZMONEH achievement
i start making gold from the bot at 21/2.
i dont think i have made 1mil gold (this is the new cap right?) in 3 weeks!! :S
PS if i have make 1mil in 3 weeks i'm pro?!?!?! PPP