This is a trend that happens a lot with bounty campaigns this days for blockchain projects, the truth is if a project doesn't meet its hardcap it is almost impossible to pay out the entirety of the bounty budget.
I think a change of approach should be adopted, projects should have a bounty budget that they will be capable of paying as long as the soft cap is reached.
This may mean a smaller budget but it also ensures hunters don't just join out of greed and spam repeatedly.
At the end everyone is happy
The allocation is already small go check ICO's allocation for bounty hunters some are only giving 2% of the supply so you want to lower to something like 0.05% but guaranty to get paid even though it's a failed project, go join that kind of ICO I will stay or looking for a good ICO with fair allocation.