Some bounty managers are also newbies so they won't even care, but I think if the reputable bounty managers set high standards for hunter's then am sure it will reduce the way newbies just create new accounts and join bounties again after their previous account have been tagged. Let's assume managers set standards that they only accept member rank upward in their campaign, then am sure any bounty hunters that can rank their account up to member rank then they won't want to go against the bounty rules so that they won't lose the account, and if they are caught cheating and their accounts are tagged, it won't be easy for them to create new accounts and rank all up. I notice @CryptopreneurBrainboss managed a bounty campaign recently, it was stated in the rules that account with less than 100 actives won't be accepted, and I noticed lot's of hunters were rejected, am sure most of those accounts that he rejected are people that their previous accounts was tagged and they created new accounts.
The way hunters are cheating in bounty, I don't think their task will have impact on the project because most of them are just spamming.
I think that will be better but some managers don't care, their are some managers that even encourage ban invation, I was going through some messages in a bounty Telegram group few months ago and a user complained that his account got ban, he then asked the manager if he can create another forum account and countinue with the task and the manager asked the user to send him private message, which I was suprised because I was expecting the manager to say No and not to request for the user to send him private message.