I heard that what most bounty managers do is to conduct the bounty project and later submit to projects teams for distribution, is this not why some projects never paid bounty hunters?

 +The job of a bounty manager should be the guide standing between bounty hunters and project teams
+ Bounty managers should be the ones to hold on to the project tokens and distribute after bounty ends

Avoid these and teams might decide not to pay or send out half payments to half of the hunters, it should be more like how IEO is where exchange stands between investors and team

Because a coin drops 84% doesn't mean it can't drop another 85%, trailed by one more 81%

DYOR, contribute, hold, take benefit, sell, Do whatever you wanna do however never "indiscriminately hold" since somebody said as much!

Your cash, your duty

investors are invading some exchanges why not developers? i know listing fee can be huge but few exchanges are just scam practitioners, developers should take their time to check out scam accusation thread on this forum and see how many people are been ripped off by these so called exchanges e.g idax p2pb2b among others