Not only social bounty they need release the signature participants bounties but don't know why they are delaying the bounties. Already they mentioned that they are going to pay the bounties on 27th may, but till now they didn't provide any clarification on it.
So that's exactly what an improper project is to deliver an appointment, it's just simple why they postponed it might be their meeting to discuss about this launch which may soon be on the market and after that they will share bounty for each participant..