I participate in bounty only from trusted managers who value their reputation and do not manage fraudulent bounty campaigns
I can't stress this enough. Joining a bounty from some coin that was just announced is risky. Joining a bounty program that is using a reliable bounty manager and/or a coin that has been around for a while gives you a much better chance at success.
Yes true thats what exactly the nicest idea ive ever done,its better to join in a campaign that the coin is already donely existed and it really has the exchage site and it will surely we got the reward we want.
Tell me which campaign will pay you with existed token/coin (except bitcoin bounty)? AFAIK there is none any campaign which will pay you with that, all of them are promised you to pay with their own token which still not listed on any exchange site yet. That's why they allocated around 1-2% from their token as your bounty