There are so many bounty campaign that moderate by newbie with 2/3 activities, is that kind of bounty are safe and believable?
My personal opinion is that the rank in the bitcointalk of the bounty manager is not so important. There are campaigns that have their own managers and they create new accounts. There are those who choose the services of specialists such as bounty detectives for example. If you want to research the bounty campaign and the project itself has much more important criteria to follow, there are many open topics here about this.
This is true but not all the time because i do always much prefer on joining bounty campaigns which do came or being handled by those known BM's on this market rather than on
joining with those newbies but same as you said but it isnt all the time on where these newbie managers wont really able to end up on having a successful bounty campaign.
I cant really just trust up those low ranks on handling out campaign even though success isnt really guaranteed to those known managers but at least you do know that
they are screening out those projects first before they do decide neither they would be handling it out or not.