Based on what I experience here in the forum as bounty hunters I prefer to join bounties manage by yahoo and wapinter and as I know those managers are honest and they are doing their best to fight scammers to avoid scam project.
Yes because both names are already popular . they also have a higher level accounts but yahoo is more trusted than wapinter because yahoo wont accept scam project but yahoo is rarely managing bounties nowadays and if ever he will manage one , he is not responsible about the payments .
Wapinter on the other hand have recieve a negative trust lately in his both original and alt account . this might be the reason on why he isnt really active on managing campaigns.