no, i think IEO prefered to protect investor not bounty hunter, as i know my friend participated in bounty campaign and this campaign launch IEO and the exchanger make rules for not running bounty campaign for the project, that's why IEO not proteting the bounty hunter but Investor
it is only for some rules of exchange, not all exchanges provide the same rules. many projects also carried out the IEO and continued to run their bounty campaigns. but it does not guarantee that the bounty will be paid, because I think the IEO or ICO will still remain the same.
This concern has been answered at this time. that indeed some Projecks are also still running a bounty to be able to get the appeal and also the progress of the introduction of their project to the community. this will also be an important thing when indeed introducing their names and concepts to many people. besides being successful in funding