we must be carefull to choose the right bounties,before we decide to join in the bounty program. good project will be stable in the market for a years,not only 2-3 month.
Or you can choose bounty program which gives payment through ethereum / bitcoin.
yes you are right, bounty programs usually run between 2-3 months. during that time we worked but when it came time we did not get a fair price.
so we have to be selective in choosing projects that we will work on.