We have seen many MOONSHIP holders suffered the big dumps from the whales. For eg: MSP price dropped 4 times in just hours because a whale dumped and took nearly 500 HT from the pool (and MSP case was 1771 HT).
So transactions (sell/buy and wallet transfer) that trade more than 0.01% of the total supply will be rejected. This will protect price movement as well.
Furthermore, whales who make a transfer (between 2 wallets) that is larger than 0,01% of the total supply will be charged for 2 HT. These 2 HTs go straight to the HT reward poolin the Earn HT feature.
This feature prevents pump-dump-exit whales because they can destroy the project.