Signature campaign who pay participant with bitcoin and who accept participant rank junior member is just siganature campaign who manage by yahoo62278 and the other manager is does not accept for rank Junior member.

Bounty campaign there are still many managers who accept rank Junior Member for each project. You can do witb your own research when you want to join bounty campaign, my suggestion when joining bounty campaign is you should see the token project, like reading the roadmaps or whitepaper and after that you can see the rank manager bounty campaign, the higher rank bounty campaign manager will have more chances your work will be paid with huge profit.