Some Project owners together with some Bounty managers promise Hunters certain percentage of total tokens to be created.
These promised tokens inturn manipulates hunters to engage in these bounties expecting to be paid.
One main phrase that gets to favor this bounty managers and project owners is "bounty manager and project owners have the rigjt to male changes to the bounty tool at any point in time"
Should the above statement be allowed to continue?
Sadly yes that's just how it is, they can make the rules and change them anytime

I think it sux and i don't agree with it, but its how it is, can't change it.
All one can do is beware partaking in any bounty or investment of time or money that you dont trust the team behind.