I know some users wanted to sell their own account because they want to stop gambling so they offered the account, it is logical thinking ofc because they can get some money which is better than they just stop gambling and let the account dead lol.
Beside that, a lot of users had more than one account, and a good number of them doing wager on each account. Many users had more than one higher VIP rank accounts for this. Some users had started to sell their secondary account to play with one account only. The price of Gold and Platinum VIP rank account used to be high as Stake was giving a base bonus amount to each VIP rank.