Very good points above!

I have a long background in advantage gambling and it keeps fascinating me how people keep believing in Martingale and the like as winning systems. Please understand that it is bettors like Nakowa that we should cherish. Real casinos treat these type of players like gods as they bring in huge profits.

Besides having a max bet on the site's end, the risk of ruin for JustDice is infinitesimally small due to the fact that the max bet reduces as the site's bankroll reduces.

On the other hand, investors seem surprised to have lost a significant (6%?) part of their investment. This surprise may be because somewhere it was stated that investors risk max 1% of their bankroll. This may be deceptive as the risk is max 1% for each bet! In fact, it is not unlikely to lose 10-20% of your investment when a big player plays for a long time and is lucky.