Sorry about that,Bountyhive CEO published a summary of the challenges his team faced with one of their bounty project,
https://medium.com/@tstomff/providing-financial-services-to-2-billion-people-and-underpaying-another-10-000-eb64aa2c40This is to let everyone know that sometimes the situation is out of their control. Similarly there's no way the ICO team can predict if their product will attract investors to assist in reaching their soft cap.
With regards to joining a bounty that pays,you need to DYOR, look for Bounty with an established company, at least an MVP or mainnet or the coin is listed on the exchange,the profile of the team. Bounty managers are simply providing escrow services.I patronize Amazix and Bountyhive and accept their verdicts when it comes.