You have to get the bounty tokens first. Than you can sell or hold.
Currently more and more doesn't pay the promised Rewards.
In addition, the high transaction costs for tokens are currently very inconvenient.
Some projects does not pay at the moment.
yes you are right, for now there are many ico projects that make bounty, but bounty prize are not paid at all ,so for the moment I think before following the best step bounty we must correctly choose the right good project