Managing bounties is more difficult than managing signatures campaigns. For bounties, as a manger you have to monitor all social media posts that includes Facebook, twitter and telegram and also forum posts. This is not a easy task compared to signature campaign where managers only have to focus on posts made on the forum.
Totally agree with you, bounty campaigns require extra effort to manage them especially that they get to have more participants than usual and you have to make sure that bounty participants are doing the right thing, so it not cheating the campaign... Not to make this sound like signature campaigns are easy both require different degrees of monitoring because of the varying number of participants.
You also need honesty and integrity to manage a signature campaign. There are lots of companies coming to advertise their services on the forum some are legit others are scams. It is your job as a manager to research and know the good and bad eggs before associating yourself with any campaign. Your reputation is at stake if the campaign is a scam. Last year before my long break, CryptopreneurBrainboss, one of the best managers I know, reported and exposed Burst.money as scam project despite whatever offers the company may have offered him. That is integrity at work.
Reputation is indeed put on the line...