How can we choose the best bounty campaign manager?
You can base your selection with their experience and most of the popular campaign managers here does have it.
Any rankings or records on the bounty campaigns performed in one place?
Or shall we examine our candidates one by one?
You can examine or talk to them alone just message them with your desire of having a campaign and I think it will be only depending on their rates that you can avail but what's important is the quality of their work.
Has anyone ever attempted (or managed) to create a master list of all the currently active campaign/bounty managers? Feels like this would be super usefull, in order to not have to manually search through a lot of threads (for both sides -> the client will find them easier, and the managers will get more clients).
I haven't seen one, if you like then you can create.