I mean with this campaign have open new slot but when new participants joining and use signature code, the bounty manager not update about his joining approved or not. If not any new participants approved better campaign close for new participants.
It looks like you replied from your alt account.
Anyway, if someone applies for a signature campaign, they are not obliged to wear signature code before accepting. If the manager does not confirm that the application is approved, it means that user is not in the campaign. As far as I can see, nobody new has been accepted for over 3 months, so we can assume that the campaign is simply CFNP.