Remember that the max profit is set by the investors and how much they risk. One thing that bothers me is that even if everyone on the site had their risk set to 10 kelly, max bet should not have been this high.
Feel free to correct me if I'm wrong, but 10 kelly means I'm willing to risk 10% of my bankroll on a single bet. So how was it possible that the max profit was nearly 95% of the actual bankroll? there might be some trickery with the variable edge at play here that i'm forgetting about
Max profit = kelly * HE.
Normally (on most sites) HE is 1% so we always just assume 10x kelly is 10% of your BR. However in this case the bet was 8% HE which means 80% of BR was risked.
(Obviously afterwards this was/is way too risky.)