On the main ANN we have stated that "Bounties will be delivered in four distinct quarterly payouts starting at network launch." so there should be minimal complaints about this hopefully. All bounties are high paying but anyone engaging in them should be aware of the payment schedule and has hopefully read the entire ANN before participating. There is a signature bounty coming very soon and i will make sure that it is clearly stated on the ANN for it to avoid any future confusion on this issue.
That's good then, you know how bounty hunters work. they do not read anything about the project and any bounty related stuffs they just join and complete the requirements. You should keep reminding them that they will not get paid in full after the bounty campaign.