2. We can see the reputation of each bounty manager. Simply choose bounty managers with green-trust accounts and avoid/ignore managers with red-trust accounts.
Some managers with red trust accounts got those red trust for issues not related to bounties and some of them turned out to bring good projects such as Sessia although I advice you should do your due diligence on any project before promoting it, if you feel in your heart of hearts that it's a promising project, then by all means promote it, I personally do not look at bounty managers, I look at the campaign although I have to admit that I have some BMs that I prefer like Julerz12 and Jolin.