Try to research in IcoBench or Icorating before joining in any bounty. This would give you successful bounties.
I have seen a lot threads here about how to choose good bounties. It shows the challenges many of us here are going through in choosing a good bounty. If you really want to maximize your chances of participating in bounties of successful ICOs, i will recommend Bountyhive for you. The success rate of their bounties is very high. Their social media campaign is less stressful because of the absence of weekly reports. They have a limit as to the number of participants in each campaign thereby enabling you to earn a higher income. Although there are certain drawbacks in their processes such as your inability to see your weekly earnings on their spreadsheet, in general their services are really good and i will recommend for everyone
Yes it's good to know about your ico's in ico bench and ico ratings in a high ratinga but its better read whitepaper and knowing the project perfectly. Because I joined few ico and list on icobench and ico marks also scammed and until now never paid us.