this is my trick to get a good bounty
1. history bounty manager
2. the amount of allocation for bounty (this is my opinion which is most important because I do not want to waste my time on bounty for low pay) if you can project your income from the bounty before joining.
if profitable join and if not leave
3. website that includes (encryption and whitepaper)
4. project development team
hope this helps and succeed!
I want just to correct your list!
1.This is the story of the Manager (I agree)
2.The history of the team that leads this ICO.
3.Road carat and white paper
4.The percentage or fixed amount that is allocated to the bounty program (this is a very important point).
5.It is necessary to assess the prospects of project
6. It is necessary to observe, probably influential persons will support the project!