There are many valuable information.  I would encourage "hunters"to look deeply at the ICO's website and whitepaper before joining any Bounty campaign.
 
I partly disagree with this point:

Before join any bounty campaign, know the managers. He is well reputed or not. Check his past work how they are success. Try to avoid those aren't well reputed and who managed most of scam ICO.

I believe we have to look the whole picture : the TEAM. They must have a good mix of business and Tech people with a background and can deliver the project as promised.