you work for a bounty projects is also as dangerous as trading or investing in ICOs. Before working, you must research the projects as much as investing. Lets read the bounty rule carefully and dont forget to choose a right bounty manager
Unfortunately, you can not rely on the bounty manager.
In order not to repeat, here is the link to post in which I told how I choose ICO (the choice of bounty and the choice of ICO is almost the same)
https://bitcointalk.org/index.php?topic=4584807.msg46406161#msg46406161