Usually every serious project takes care to free its signature bounty carrier ASAP after the end of the ICO, since the bounty hunters would not be paid for keeping the signatures after the ICO (and the campaign) is over. So if the administrator of a signature campaign is not releasing his bounty hunters ASAP from the burden to wear their signature in a period of time for which they will not be paid for, he ends up cheating his bounty hunters. In fact, bounty hunters would remain trapped in a campaign where they would not be paid any more. Since Ambrosus seems to be run by honest people, I hope they will deal with this issue ASAP. But for sure they are already late, and so they have already stolen some days to the people who have joined their signature campaign, days that the people could have been using by joining other campaigns.