To know a good bounty we should consider the time frame of the bounty, the amount allocated for the bounty, the manager managing the bounty, and the validity of the project doing the bounty campaign. There are lots of bounties today that offer a reward that is almost non-existent. They are requiring months of work but the reward is miniscule. Better learn how to calculate reward base on the participant number if the bounty offer is in stake form.
agreed to know how to calculate reward based form the participants is definitely essential in following bounty campaigns.
it's in order to avoid some kind of bounty campaigns that will give low reward at the end of the bounties, there are some of them that gives low reward meanwhile have unlimited participants following their campaign which makes the reward reduced significantly lower in the long run.