Bounty hunters are becoming impatient if the rewards is still not distributed even though the bounty or ICO period was already ended months ago. They are complaining because they waste their efforts and time for nothing. They already waited enough so we cannot blame them.
Complaining is good if it's right . Wasting time and efforts of bounty hunters is usually said of them if they did not get their token.
Bounty hunters are don't want to wait like few months before the token being listed. Not all the bounty hunters like that but there still some bounty hunters are good and have patient. Not all the bounty hunters are their fault for sure they want to see their effort and spending few months in the ICO by getting more tokens with good value.