if in my opinion do not participate in a project that lasts longer than 4 months ahead, Firstly, we need to do a little research on bounty campaign before we will enter into to join, we must pay attention to a post has been made on this platform that explains how someone can choose a good campaign, because a good campaign and a better prize by checking their trust rank, we should be able to Make sure that it has a trusted manager. You can read their white paper to review the ICO project.