OP, you will need to arrange for a third party neutral Escrow. Already one signature campaign scammed its participants since there was no Escrow. I think participants should first wait for Escrow before diving in.
Mate, previously he managed the campaign called
Tip token and I am part of that campaign as a participant. It went cool and payment confirmation notified on thread in 17 hours. I will confirm once receive. I hope that is enough to trust the person.
I am able to understand the scam act of Bitplay by pausing the campaign.
This is manager seems perfect person in managing the campaign. Hope he may also reply you on this thread. Good day...