If you mean this kind of bountynya, I think depends on the allocation of bounty and the number of prtisipan. When the number of large allocations and participants a lot, then the possibility of a small result, because divided by the number of participants. But if the allocations are large and the participants are few, then it is likely to get great results.
The problem when there are so few participants in a bounty campaign is that the project is not going to gain any recognition and if that happens you risk not getting paid, I think it is better to participate in bounty campaigns with a lot of users that way if the coin skyrockets you can get even better earnings with the bounty you got.