I disagree with this suggestion.
Reason #1: This could increase the prices of Members' Tickets. The members' tickets can only be bought with IRL cash, encouraging players to literally buy gold, putting players who can't spend any money and trying to make money themselves at an even bigger disadvantage. I know it helps to keep the server up, but it's just wrong in my opinion to have a big advantage if you're doing good financially IRL. You're free to call me stupid for this, but this is just my opinion.
Reason #2: It's just pointless to add this. There's like 10 people who I saw personally staking in the peak time, so coding and working for those 10 people just to get a feature removed for them is again, wrong. Plus, no one is actually quitting if they're losing their bank. Rich, in example, would probably have high stats and could re-build pretty easily and continue staking, even with member requirement. Poor, on the other half, would lose a million or two, quit for a day, make money and stake again, repeat. By putting the members requirement, the poor people would actually quit if they found the adrenaline they got from staking enjoyable.