So basically when we reach 10.000 btc, it's 100% loss for investors and 0% gain ?

If we get to that point :
- owner will get all the profit
- bankroll will fluctuate a bit between 10.000 btc and a bit lower when there is a swing downward and will recover to 10.000 slowly (due to a 99% commission on win).

This also means new investors are screwing old one even more since in addition to dilution, they also increase the overall commission rate.