Many bounty hunters always sell their tokens whenever they like the price. And we cannot do anything about that. Because they have their own mind and we cannot control them in selling it. Maybe they are in need of immediate money so they tend to sell their token immediately.
It should be borne in mind that in some countries, people earn very little money compared to the United States, for example. And if they earned $ 50 in bounty, for them it's still a significant amount