If a casino patron wins an unusually large amount of money, the casino may take certain steps to manage the situation. This could include closely monitoring the player's activities, reviewing the game's integrity, and potentially limiting the player's future access to certain games or the casino itself.
If you're wondering whether you should you play max bet on penny slots or any other type of slot for that matter the simple truth is that most slots don't offer any additional benefits to placing a maximum wager.