Once centralization is involved, then it's no longer P2P. A third party entity is totally in control and in charge of whatever you do, which makes it more risking, because whatever or any suspicious activities on your account or profile, you're either blocked or banned, which might result to lost of account, so in all honest this isn't P2p, it's just a fake system of operation to enticed you into their exchange, beside your identity and privacy isn't safe, just keep that in mind too.