As far as I know, if you win large amounts of gambling, it should be published, because it involves paying out large amounts, different from winning small amounts, the reason is because the casino is responsible for the money that is spent and that enters the casino every day.

For some gambling industries, to spend large amounts of money, the parties responsible for the casino and finances must know, because some gambling casinos work with partners or investors who invest, The money spent must be published in the media and this will show the public that their casino is honest and responsible for big wins for its users.

Casinos have a nominal amount of money that must be paid out in small amounts per day, so it doesn't have to be published, but unlike users who win large amounts, like it or not, publication is required.