I read that thread on Casinoguru and so far, there is suspicious and skeptical thinking about that user. There is also no final conclusion about the case yet but from what I read, it does not has anything to support the user to claim that winning.
Before the case is finalized by the regulator, it is not right to say either the casino or the user is the winner. Casino guru also recommended that user (if not you) to wait for updates from the regulator. Else you can go with hiring a lawyer to do it, escalate it for you.
I am neutral but it seems evidence shared to Casino guru and regulator, their, so far, thinking is not on that user.
131 bitcoins in a single win is outrageous to be honest, I thought casinos used to have some kind of limit to an amount of money a player can win in a single win, just like on stake, it's been a while though but I remember I tried placing a bet on a really high odd mutil - bet game one time, and the system returned an error message telling me that the amount of my potential winning is way higher than the winning limit of the casino, and as such, my bet could not be placed, that I should reduce the amount of money I am staking or remove some games from the multi - bet to reduce the odds.
If Roobet has or had such system in place, there shouldnt be a time when a user will be able to win an amount of money that is way above an amount they can comfortably pay, and issues like this shouldn't arise for what ever reason, except of course, the player manipulated the system into winning such an amount, then such manipulation should be too difficult for the casino to figure out.
Anyways, 131 bitcoins isnt a small amount of money, and I think this is the first time I am seeing that a player won that much from an online casino, I hope they find a way around the issue though.