In my exploration of online casino successes, I've discovered that yes, people do win big amounts through these platforms. Some players have even become millionaires, thanks to online casinos. However, it's important to note that these wins are not commonplace and often require substantial bets to begin with. The luck factor plays a significant role, but some strategies can increase winning chances. Ultimately, while big wins are possible, they're not guaranteed and gambling should always be undertaken responsibly.