The tables remain

Modern gambling businesses inherit fragments of older rules.

Debts should be witnessed. Demonstrable cheating can void a settlement. A player cannot stake something they have no right to give.

Enforcement varies considerably.

Some operators regard those customs as good business. Others keep them because abandoning them would offend people whose goodwill still matters.

Players wager for pleasure, prestige, escape and desperation.

The habit becomes a flaw when it overrides judgment, responsibilities or the welfare of others. Supernatural patrons are no less vulnerable to that than anyone else.

A retired dealer may remember an argument omitted from a company history. An old account can explain a debt without explaining the person who paid it.

There are still occasional complaints that the island’s oldest gambling customs make little sense to modern owners.

The houses that preserve them generally continue doing business.