I have seen a guy loosing 1000 bitcoins in just one bet on justdice and another guy loosing more than 300+ btc on pd. but at that time btc was much less than 200$. This guy is really crazy or too rich to afford that much of money.
I agree seeing someone to bet 50 bitcoin when the price is already on 6K$ I really cant comprehend what kind of reasong was that ? maybe he was just crazy or making stories , Owning already a 50 worth of bitcoins make you already rich I Just cant understand why you need to be richer ? are you not contented in your life ?
Probalby they have hundred of thousand of Bitcoin so they do not mind losing 300 or 1000 bitcoins in one roll. I can also do that if I have that amount of BTC

. That may sounds crazy but as i said if I have hundred of thousands of BTC that 1000 BTC is nothing but some dust.
Wow you're such a rich man! With that amount of bitcoin I can surely secure my future as well as my family and have an extravagant life. Hope in time I can earn my target pieces of fortune like. I hope you good luck with your bitcoin sir.