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.