I doubt that it was a different whale. Only the owner of the platform (
leomedina) can clarify it properly. I guess he won't disclose it for privacy reasons.
That's generally true, but this whale actually said in chat that it was him.
Most probably he didn't find any exploit. The user has lost the 100+ BTC profit which he made yesterday. And his PnL stats were -51 BTC when he closed his account today. The funniest thing is that the user was addressing the game as rigged after having a big losing streak. The user has said in the chat that he has already lost his previous profits by playing with it at Stake. Therefore, it is going to take ages for the investors to recover the losses.
Yeah, it could take a while. I ran the numbers, and we've averaged about 3,000 BTC wagered per month over the past year. At a 1% edge, that would mean ~30 BTC per month, so it could take around nine months to recover the current 270 BTC deficit. That's probably an optimistic estimate, though. It could take a lot longer or less, depending on wager volume.