don't waste your time on projects like that and you better choose projects listed on other exchanges, for example from bounty detective I see a lot of their projects listed on the exchange are more promising than azbi it's just that I don't know whether the reward is guaranteed or not .
Also remember that, the said bounty campaign manager have their own issue surrounding their promotion, so, there are still negative views from bounty hunters in this regard. They don't make the spreadsheet public which many have complained before now, if they have nothing they're hidding then why not make their spreadsheet public. The only issue here is; so your research before joining bounty campaigns, by doing this you're saving yourself some horrible stresses from different campaign managers.